- Adriana M. Galvez
- background color supervisor / background color supervisor: Film Roman / background key supervisor / background color supervisior: Film Roman (251 episodes, 1997-2010)
- Mike Judge
- original character designer (249 episodes, 1997-2010)
- Paul Fetler
- color key designer / color key design supervisor / color designer / color design supervisor: Film Roman / color key design supervisor: Film Roman / color key designer: Film Roman / color key supervisor: Film Roman (192 episodes, 1997-2010)
- Philippe Angeles
- overseas animation director (182 episodes, 1999-2010)
- Kui Yong Kim
- background key designer / background keys / background keys: Film Roman / background layout artist / background layout boards: Film Roman (141 episodes, 1997-2010)
- James McDermott
- character designer / character design supervisor / character layout artist / character design supervisor: Film Roman / character design (135 episodes, 1997-2010)
- Phil Hayes
- background design supervisor / background designer / background production designer: Film Roman / background production designer / background designer: Film Roman / background production manager: Film Roman (131 episodes, 1997-2010)
- Chuck Maiden
- background key designer / background keys / background layout artist / background keys: Film Roman / digital background board layout artist: Film Roman / digital background board layout: Film Roman / background layout boards: Film Roman / background layout boards / digital background board layout (111 episodes, 1997-2010)
- Kent Holaday
- lip sync: Film Roman / lip sync (100 episodes, 1997-2003)
- Mike Guerena
- color key designer / color key designer: Film Roman (100 episodes, 2001-2008)
- Acacia Caputo
- lip sync / lip sync: Film Roman / animation timer / animatic timer / animation timer: Film Roman / animation director (98 episodes, 1997-2010)
- Cesar Magsombol
- background designer / background designer: Film Roman (97 episodes, 1997-2010)
- Kristen Keeves
- color key designer / color key designer: Film Roman (90 episodes, 2002-2008)
- Richard Ziehler-Martin
- background key designer / background keys / background keys: Film Roman (83 episodes, 1999-2010)
- Ernesto Escobar
- background design supervisor / background designer / background layout artist / background layout boards / background design supervisor: Film Roman / background designer: Film Roman / background layout boards: Film Roman / character designer (80 episodes, 1997-2010)
- Atlantida Dustin
- background designer / background design clean-up / background design cleanup: Film Roman / background design clean-up: Film Roman / background designer: Film Roman (74 episodes, 2001-2010)
- Lynda Lester
- animation production coordinator (65 episodes, 1998-2000)
- Glenn Dion
- retake director / retake layout / character layout artist / retake director: Film Roman / retake layout artist / layout artist / retake layout: Film Roman (64 episodes, 1998-2010)
- Tony Tarantini
- layout supervisor (62 episodes, 1997-2004)
- Kathryn Gilmore
- animation checker (60 episodes, 1997-2003)
- Richard Sullivan
- animation checker / animation checker: Film Roman (60 episodes, 1998-2008)
- Anne Harting
- animatic supervisor (59 episodes, 1997-2002)
- Libby Reed
- color key designer / color designer / ink and paint (59 episodes, 1997-2000)
- Matt Engstrom
- retake director / retake layout / character layout artist / animation layout artist / layout artist / retake layout artist (56 episodes, 1998-2007)
- Hector Martinez
- background key designer / background keys / background keys: Film Roman (55 episodes, 2005-2010)
- Gerry Galang
- character designer / animation layout artist / character designer: Film Roman (54 episodes, 2005-2010)
- Glenn Kirkpatrick
- overseas animation director / overseas animation director: Rough Draft Studio / overseas animation director: Rough Draft Studios / overseas animation director: Rough Draft Studios, Inc. (52 episodes, 1997-1999)
- Belle Norman
- ink and paint artist / color key designer / ink and paint (46 episodes, 1997-2003)
- Ken Hayashi Jr.
- character designer / character designer: Film Roman (46 episodes, 1998-2006)
- Brenda Banks
- character layout artist / animation layout artist / layout artist (44 episodes, 1997-2006)
- Brenda McKie-Chat
- overseas animation director / overseas animation producer (43 episodes, 2007-2010)
- Paul Scarlata
- character layout artist / character designer / animation layout artist / layout artist (42 episodes, 1997-2005)
- Ginny Sherwood
- background designer / background layout artist / character layout supervisor / background layout supervisor (41 episodes, 1998-2006)
- Gary Yap
- character layout supervisor / retake director / character layout artist / animation layout artist / layout artist / retake layout (40 episodes, 1998-2004)
- Ralph Delgado
- background layout artist / background layout boards: Film Roman / background layout boards / animatic staff / character layout artist (39 episodes, 1997-2010)
- Ervin Kaplan
- background key designer / background keys / background keys: Film Roman (38 episodes, 1999-2006)
- Monte Young
- retake timer / retake timer: Film Roman / retake layout / retake layout: Film Roman / animation timer / storyboard artist (37 episodes, 1997-2010)
- Art Roman
- character layout artist / timing (37 episodes, 1997-2000)
- Albert Acosta
- character layout artist / character layout supervisor / retake layout / animation layout artist / animation layout artist: Film Roman / overseas animation director (36 episodes, 1998-2003)
- Scott Moot
- background designer / background layout artist / background designer: Film Roman (35 episodes, 2001-2010)
- Lynne Healy
- character layout artist / animation layout artist / character designer (33 episodes, 1997-2003)
- David Preston
- character layout artist (33 episodes, 1997-2000)
- Neil Graf
- assistant retake director / retake assistant director / retake assistant director: Film Roman / retake layout / retake layout: Film Roman / animation layout artist (33 episodes, 2006-2009)
- Randi Neill
- character layout artist / animation layout artist / retake layout / retake layout artist (32 episodes, 1997-2003)
- Stephanie Tuck
- animatic staff (31 episodes, 1997-1999)
- Jill Daniels
- background keys / background key designer (31 episodes, 1997-1998)
- John Banh
- character layout artist / animation layout artist / retake layout (31 episodes, 1998-2006)
- Paul Cunningham
- character layout artist / animation layout artist / animation layout artist: Film Roman (30 episodes, 1998-2006)
- Bill Buchanan
- retake layout / character layout artist / animation timer / retake layout artist (29 episodes, 1997-2006)
- Younghee Higa
- animation timer / animation checking / animation checker (29 episodes, 1997-2006)
- Phillip Stamp
- character layout artist / layout artist (29 episodes, 1997-2004)
- Vonnie Batson
- animation timer / timer / animatic timer / animation checker (29 episodes, 1997-2000)
- Joel Adams
- character designer (29 episodes, 1997-1999)
- Victor E. Almaguer
- character layout artist / animation layout artist (29 episodes, 1999-2006)
- Young Yoo
- character layout artist / animation layout artist / layout artist (29 episodes, 1999-2006)
- Ian Wilcox
- background layout artist / background layout artist: Film Roman (28 episodes, 1998-2007)
- Paul Cheolsoo Lee
- character layout artist / animation layout artist / retake layout (28 episodes, 1998-2006)
- Kevin Thresher
- character layout artist / animation layout artist / layout artist / retake layout (28 episodes, 1998-2005)
- Daniel Yoontaek Lim
- retake layout / retake layout: Film Roman / background layout artist / retake layout artist: Film Roman (27 episodes, 2007-2010)
- Allan Jacobsen
- retake director / character designer / character layout artist / background layout artist / retake layout / retake layout artist / timer (26 episodes, 1997-2002)
- George Nachev
- background layout artist / background layout artist: Film Roman (26 episodes, 1998-2006)
- Wesley Archer
- executive animation consultant / character designer (25 episodes, 1997-2000)
- Catie Ballenger
- character layout artist / animation layout artist / animation layout artist: Film Roman (25 episodes, 1999-2006)
- Jeff Rebner
- animation layout artist / character layout artist / layout artist (25 episodes, 1999-2006)
- Christopher L. Smith
- animation layout artist / character layout artist / animation layout artist: Film Roman / layout artist (25 episodes, 1999-2006)
- Denise Link
- animation checker / animation checker: Film Roman (25 episodes, 2007-2010)
- Anthony Aguinaldo
- background key designer / color key designer / background keys: Film Roman / background keys / color key designer: Film Roman (25 episodes, 2008-2010)
- Jason Yu
- character layout artist / retake layout artist (24 episodes, 1997-2000)
- Giovanni Moscardino
- animatic layoff (24 episodes, 1997-1998)
- Ben Fried
- character layout artist / animation layout artist (24 episodes, 1998-2005)
- Steve Pilapil
- background layout artist (24 episodes, 1998-2005)
- Pete C. Newbauer
- background layout artist / background layout boards / background layout boards: Film Roman (24 episodes, 2002-2010)
- Eric T. Elder
- character layout artist (23 episodes, 1997-2001)
- Jill Jacobs
- animation timer / animation timer: Film Roman / lip sync (23 episodes, 2003-2010)
- Carol Millican
- animation timer / animation timer: Film Roman (23 episodes, 2007-2010)
- Polly Qin
- character layout artist (22 episodes, 1997-2001)
- John Magness
- background designer (22 episodes, 1997-1998)
- Cookie Tricarico
- ink and paint (22 episodes, 1997-1998)
- Jessie Romero
- animation layout artist / character layout artist / layout artist (22 episodes, 2000-2006)
- Michael Loya
- character layout artist / retake director / animation layout artist / retake director: Film Roman / retake layout / layout artist / retake layout: Film Roman (22 episodes, 2001-2010)
- Steve Ingram
- animatics / animation editor: Film Roman (22 episodes, 2003-2008)
- John Rice
- supervising director / character designer (21 episodes, 1997-2001)
- Scott Uehara
- background layout artist (21 episodes, 1998-2004)
- Rafael Cruz
- character layout artist (21 episodes, 1998-2003)
- Richard Gasparian
- timing director / animation timer (21 episodes, 2000-2004)
- Sidney Lewis
- background keys / background key designer (20 episodes, 1997-1999)
- Derek Higgs
- background design coordinator (20 episodes, 1999-2000)
- Seung Woo Cha
- animation layout artist / retake assistant director: Film Roman / character layout artist / retake assistant director / retake layout (20 episodes, 2002-2008)
- Caesar Martinez
- background designer / background layout artist / background layout artist: Film Roman / background layout boards: Film Roman (20 episodes, 2002-2008)
- Kurt Peterson
- retake director / animation timer / timer (19 episodes, 1997-2003)
- Neil Ishimine
- background layout artist / character layout artist / background designer (19 episodes, 1997-1999)
- Tom Dankiewicz
- background layout artist (19 episodes, 1998-2005)
- Anthony Lioi
- retake director / character layout artist (19 episodes, 1998-2000)
- Sylvia Keulen
- animation timer / animation timer: Film Roman (19 episodes, 2007-2010)
- Pete Mekis
- character layout artist (18 episodes, 1997-1999)
- Kyung S. Shin
- character layout artist / animation layout artist (18 episodes, 1999-2006)
- Esther H. Lee
- animation checker (18 episodes, 2002-2006)
- Deborah Cone
- character layout artist / animation layout artist / animation layout artist: Film Roman / retake layout (17 episodes, 1998-2003)
- Michael Rundle
- character layout artist / animation layout artist / layout artist (17 episodes, 1999-2006)
- Jarod Daetwiler
- background layout artist / background designer (17 episodes, 2001-2007)
- Barry Vodos
- retake layout / animation layout artist / character layout artist / retake layout artist: Film Roman (17 episodes, 2002-2010)
- Jack Perkins
- animation layout artist / retake layout / character layout artist / layout artist (17 episodes, 2002-2008)
- Antonio N. Torres
- background layout artist / background layout boards: Film Roman / background layout boards / background design clean-up: Film Roman (17 episodes, 2007-2010)
- Li René Harmon
- background key designer / background keys: Film Roman / background painter (17 episodes, 2007-2008)
- Ronald Rubio
- character layout artist / animation layout artist / retake layout (16 episodes, 1998-2002)
- Marcos Asprec
- animation layout artist / layout artist (16 episodes, 2003-2006)
- Erik Petraitis
- animatic staff / animation editor: Film Roman (15 episodes, 1997-2008)
- Mark Miraglia
- character layout artist / retake layout / animation layout artist / animation director / animation timer / storyboard artist (15 episodes, 1997-2006)
- Sam Im
- animation checker (15 episodes, 1997-1999)
- Celeste Mari Williams
- animatic timer / animation timer (15 episodes, 1997-1999)
- Bill Flores
- background layout artist / character layout artist (15 episodes, 1997-1998)
- Deborah Mark
- ink and paint artist (15 episodes, 1997-1998)
- Ken Roskos
- character layout artist (15 episodes, 1998-2000)
- Steve Robertson
- character layout artist / animation layout artist / retake assistant director / retake layout (15 episodes, 1999-2007)
- Brent Woods
- character layout artist / background layout artist (15 episodes, 1999-2003)
- Esther Kim
- color key designer / color key designer: Film Roman (15 episodes, 2009-2010)
- Jack Dyer
- retake director (14 episodes, 1998)
- Chad E. Cooper
- background layout artist / background designer (14 episodes, 1999-2006)
- Mike L. Mayfield
- layout artist / animation layout artist (14 episodes, 2004-2006)
- Christopher Holt
- background layout artist / background designer (13 episodes, 1997-2000)
- Phyllis Craig
- ink and paint supervisor (13 episodes, 1997)
- Justin Whang
- character layout artist (13 episodes, 1999-2003)
- Joseph Lee
- character layout artist / animation layout artist / layout artist (13 episodes, 2000-2004)
- Tomihiro Yamaguchi
- animation layout artist / character layout artist (13 episodes, 2002-2006)
- Rufino Roy Camacho II
- character designer / animation layout artist / character designer: Film Roman (13 episodes, 2005-2009)
- Leonardo C. Quintua
- background layout boards / background layout artist / background layout boards: Film Roman (13 episodes, 2007-2010)
- Jerry Lee Brice
- character layout artist / animation timer / animatic timer (12 episodes, 1997-1999)
- Boo Hwan Lim
- timer / character layout artist / animation timer / retake layout (12 episodes, 1997-1998)
- Kyoung Hee Lim
- timer / animation timer / character layout artist / retake director (12 episodes, 1997-1998)
- Misoon Kim
- animation checker (12 episodes, 1997)
- Sam Kirson
- background layout artist / character layout artist (12 episodes, 1997)
- Giancarlo Volpe
- character layout artist / animation layout artist (12 episodes, 1999-2004)
- Henry Madden
- animation timer (12 episodes, 1999-2000)
- Seranie A. Manoogian
- animation production coordinator / animation production manager (12 episodes, 2000-2009)
- Ricky Santana
- animation layout artist / animation layout artist: Film Roman / character layout artist (12 episodes, 2002-2006)
- Ruby Shin
- animation layout artist / character layout artist / layout artist (12 episodes, 2002-2006)
- Pat Agnasin
- background layout artist / background layout boards: Film Roman / background layout boards / background design clean-up / background designer (12 episodes, 2007-2009)
- Michel Lyman
- timer / animation timer / lip sync (11 episodes, 1997-2008)
- Jeff Stewart
- character layout artist (11 episodes, 1997-1999)
- Ralph A. Eusebio
- animatic staff (11 episodes, 1997-1998)
- Elias Rios
- animatic staff (11 episodes, 1997-1998)
- Dug Ward
- character layout artist / animation timer (11 episodes, 1997-1998)
- Damon P. Yoches
- animatic supervisor (11 episodes, 1997-1998)
- Jason Shultz
- background layout artist / character layout artist (11 episodes, 1997)
- Ken Wong
- character layout artist / animation layout artist (11 episodes, 1999-2003)
- Ying Ming Tu
- background designer (11 episodes, 1999-2002)
- Chris Bennett
- animation layout artist / background layout artist / character layout artist / layout artist (11 episodes, 2000-2006)
- Jerry Langford
- character layout artist / animation layout artist (11 episodes, 2001-2004)
- Brad Forbush
- animation layout artist / retake layout / layout artist (11 episodes, 2003-2007)
- Jungja Kim-Wolf
- animation timer / animation timer: Film Roman / animation checker (11 episodes, 2007-2009)
- Dave Filoni
- character layout artist (10 episodes, 1997-1999)
- Kamoon Song
- animation timer / animatic timer / character layout artist (10 episodes, 1997-1998)
- Cliff Voorhees
- background layout artist (10 episodes, 1997-1998)
- Robert Villegas
- background keys (10 episodes, 1997)
- Dimitri Rentzis
- animation timer / animation director (10 episodes, 1998-2005)
- Shaun Cashman
- character layout supervisor / retake director / animation layout artist / character layout artist / layout artist (10 episodes, 2001-2003)
- Shane K. Sowell
- layout artist / retake layout (10 episodes, 2004-2006)
- Joel C. Cunanan
- background layout boards / background layout artist / background design clean-up / background design cleanup: Film Roman (10 episodes, 2009-2010)
- Tracy Jones
- color key designer / color key designer: Film Roman (10 episodes, 2009)
- Martin Archer
- retake director / character layout supervisor / retake layout (9 episodes, 1997-1999)
- Mark Linder
- background layout artist (9 episodes, 1997-1999)
- Jason Magness
- character layout artist (9 episodes, 1998-1999)
- Donald Shaw
- character layout artist (9 episodes, 1998-1999)
- Tony Gennaro
- animation production manager / animation production coordinator (9 episodes, 2000-2008)
- Eduardo Olivares
- character layout artist (9 episodes, 2000-2002)
- Roxanne Patruznick
- character layout artist / animation layout artist (9 episodes, 2001-2003)
- Randy Ludensky
- animation timer / animation timer: Film Roman (9 episodes, 2006-2008)
- Galina Budkin
- background layout boards / background layout artist / background layout boards: Film Roman (9 episodes, 2008-2010)
- Tec Manalac
- background designer / background layout boards / background layout artist / background layout boards: Film Roman (9 episodes, 2008-2010)
- Arthur Valencia
- animation layout artist / character layout artist / layout artist / retake layout / retake layout: Film Roman (8 episodes, 1997-2007)
- Greg Lovell
- animation layout artist / character layout artist (8 episodes, 1997-2006)
- Joseph Holt
- background layout artist / background designer (8 episodes, 1997-1999)
- Melanie Middien
- animation production coordinator / animation production assistant (8 episodes, 1997)
- Randy South
- background layout artist (8 episodes, 1998-2000)
- Patrick Gleeson
- animation timer / animation director (8 episodes, 2002-2006)
- Anthony Agrusa
- animation layout artist / layout artist (8 episodes, 2003-2006)
- Paul Castro
- background layout artist / background layout boards / background layout boards: Film Roman (8 episodes, 2008-2010)
- Gloria Palter
- animation checker / animation checker: Film Roman (8 episodes, 2009-2010)
- Robin Brigstocke
- character layout artist (7 episodes, 1997-1999)
- Ken Becker
- character layout artist (7 episodes, 1997-1998)
- James Fino
- animation production coordinator (7 episodes, 1997-1998)
- Dave Brain
- timer (7 episodes, 1997)
- John Eddings
- animation layout artist / character layout artist (7 episodes, 1998-2006)
- Sue Bielenberg
- character layout artist (7 episodes, 2001-2003)
- Christine V. Smith
- animation timer (7 episodes, 2002-2005)
- Erengo Suto
- animation layout artist / layout artist (7 episodes, 2003-2005)
- David P. Bonanno
- character layout artist / animation layout artist / layout artist (7 episodes, 2005-2006)
- Wilfred Martinez
- background layout artist / background design clean-up (7 episodes, 2008-2009)
- Chung Sup Yoon
- background layout artist / background layout boards / background layout boards: Film Roman (7 episodes, 2008-2009)
- Christine Blum
- character layout artist / animation timer / retake layout (6 episodes, 1997-2002)
- Tim Long
- animation timer (6 episodes, 1997-1998)
- Brian Lum
- character designer (6 episodes, 1997-1998)
- David Salvador
- character layout artist (6 episodes, 1997-1998)
- Terry Lennon
- timer / timing (6 episodes, 1997)
- Chuck Austen
- character layout artist (6 episodes, 1998-2000)
- Joel Hageman
- character layout artist (6 episodes, 1998-1999)
- Davrick Waltjen
- animatic staff / animatic supervisor (6 episodes, 1999-2003)
- Craig Armstrong
- animation timer / retake layout (6 episodes, 1999-2002)
- David Kurland
- background layout artist (6 episodes, 1999-2000)
- Tricia Benson
- character layout artist (6 episodes, 1999)
- David Doherty
- background layout artist (6 episodes, 1999)
- Jeff Howard
- animation timer: Film Roman / animation layout artist / animation timer / character layout artist (6 episodes, 2002-2008)
- Richard Manginsay
- animation layout artist (6 episodes, 2003-2006)
- Adam Kuhlman
- animation layout artist / animation timer (6 episodes, 2004-2006)
- Chris Moeller
- retake director / timer (5 episodes, 1997)
- Julius Wu
- character layout artist / retake layout (5 episodes, 1998-2002)
- Greg Ferrara
- animatic layoff (5 episodes, 1998-1999)
- David Swift
- character layout artist (5 episodes, 1998)
- Jean Morel
- character layout artist / animation layout artist / animation layout artist: Film Roman (5 episodes, 2000-2004)
- Mechele Boyett
- animatic layoff (5 episodes, 2000-2002)
- Fred Radtke
- animatic layoff (5 episodes, 2000-2002)
- Jamie H. Huang
- animation timer (5 episodes, 2000-2001)
- Claudia Stegall
- animation timer (5 episodes, 2007-2008)
- Dave Lyman
- animation timer / animation timer: Film Roman (5 episodes, 2007)
- Connor Flynn
- animation timer / animation director (5 episodes, 2009)
- Majella Milne
- animation timer / animatic timer (4 episodes, 1997-1998)
- Yorland Tellz
- character layout artist (4 episodes, 1997-1998)
- Roman Arambula
- animation timer (4 episodes, 1997)
- Paul Elliot
- overseas animation director: Plus One Animation / overseas animation director (4 episodes, 1997)
- Eric S. Keyes
- character designer (4 episodes, 1997)
- Chris Naylor
- color designer (4 episodes, 1997)
- Jerilyn Dever
- animation timer (4 episodes, 1998-1999)
- Armando Rosales
- character layout artist (4 episodes, 1999-2000)
- Lee Crowe
- sheet timer / animation timer (4 episodes, 2000)
- Heather Hay
- animatic scanner (4 episodes, 2002)
- David Bastian
- animation timer / animation timer: Film Roman (4 episodes, 2003-2005)
- Juanito C. Madrid
- animation layout artist (4 episodes, 2005-2006)
- Annie McMillan
- animation layout artist (4 episodes, 2005-2006)
- Jansen Yee
- animation layout artist / layout artist (4 episodes, 2005-2006)
- Stephanie Elliott
- animation producer (4 episodes, 2007-2009)
- Fred J. Hofheinz
- background designer / background layout artist / background layout boards: Film Roman (4 episodes, 2007)
- Tricia Garcia
- retake timer / animation timer (4 episodes, 2008)
- Rodel Gravo
- background layout artist / background layout boards (4 episodes, 2008)
- Swinton O. Scott III
- animation timer (4 episodes, 2009-2010)
- Shaunt Nigoghossian
- retake assistant director / retake assistant director: Film Roman (4 episodes, 2009)
- Jess Espanola
- character layout artist / animation timer (3 episodes, 1997-1998)
- Timothy Bailey
- background layout artist (3 episodes, 1997)
- Chris Damboise
- overseas animation director: Plus One Animation (3 episodes, 1997)
- Chris Fria
- character layout artist (3 episodes, 1997)
- Mike Novak
- character layout artist (3 episodes, 1997)
- Carol Yao
- animation timer (3 episodes, 2000-2001)
- Joe Hawkins
- background layout artist (3 episodes, 2002)
- Casey Coffey
- animation layout artist / layout artist (3 episodes, 2005)
- Josue Cervantes
- animation layout artist (3 episodes, 2006)
- Louis Russell
- animation editor: Film Roman (3 episodes, 2008)
- Liza Epps
- background design clean-up / clean-up artist (3 episodes, 2009)
- Doug Gallery
- animation timer / animation director (3 episodes, 2009)
- Melinda Leasure
- retake design lead: Film Roman / retake design lead (3 episodes, 2009)
- Klay Hall
- character designer / retake director (2 episodes, 1997-1999)
- Scott Alberts
- character designer (2 episodes, 1997)
- Kurt Conner
- character designer (2 episodes, 1997)
- Michael Dante DiMartino
- character layout artist (2 episodes, 1997)
- Edgar Duncan
- background layout artist (2 episodes, 1997)
- Mark Fisher
- character layout artist (2 episodes, 1997)
- Gary Hoffman
- character layout artist (2 episodes, 1997)
- Warren Marshall
- character layout artist (2 episodes, 1997)
- Jim Shellhorn
- character layout artist (2 episodes, 1997)
- Cyndi Tang
- timer / character layout artist (2 episodes, 1997)
- Glen Wuthrich
- background layout artist (2 episodes, 1997)
- Norland Tellez
- character layout artist (2 episodes, 1998)
- Shigeko Doyle
- ink and paint / ink and paint artist (2 episodes, 1999)
- Whitney B. Martin
- character layout artist (2 episodes, 2000-2002)
- Dexter Reed
- character layout artist (2 episodes, 2002)
- Russell G. Chong
- background key designer / background keys: Film Roman (2 episodes, 2003)
- Paul Eigenhuis
- animation layout artist (2 episodes, 2004-2005)
- Spencer Graham Davis
- background layout artist (2 episodes, 2007)
- Don Judge
- animation timer (2 episodes, 2007)
- Jacob Hair
- retake layout (2 episodes, 2008)
- Timothy Hwang
- background layout boards / background layout boards: Film Roman (2 episodes, 2009-2010)
- T.C. Starnes Jr.
- background layout boards / background layout boards: Film Roman (2 episodes, 2009-2010)
- Neil Affleck
- timer (1 episode, 1997)
- Patrick Buchanan
- animatic staff (1 episode, 1997)
- Curtis Cim
- character layout artist (1 episode, 1997)
- Dustin Foster
- animatic staff (1 episode, 1997)
- Brian Hogan
- storyboard artist (1 episode, 1997)
- Robert Ingram
- animatic staff (1 episode, 1997)
- Samantha Inoue Harte
- animator (1 episode, 1997)
- Lance Kramer
- character layout artist (1 episode, 1997)
- Grant Lee
- character layout artist (1 episode, 1997)
- Kevin O'Brien
- storyboard artist (1 episode, 1997)
- William Capp Peirce
- animatic staff (1 episode, 1997)
- Dominic Polcino
- timer (1 episode, 1997)
- Charles Ragins
- background designer (1 episode, 1997)
- Barbara Schade
- background keys (1 episode, 1997)
- David Singer
- animatic staff (1 episode, 1997)
- Erick T. Tran
- character layout artist (1 episode, 1997)
- Ed Valez
- character layout artist (1 episode, 1997)
- Lance Wilder
- background designer (1 episode, 1997)
- Allen Wilzbach
- timer (1 episode, 1997)
- Carmen Woods
- animatic staff (1 episode, 1997)
- Mike Frank Polcino
- animation timer (1 episode, 1999)
- Chris Cooper
- background layout artist (1 episode, 2000)
- Jason Yu
- character layout artist (1 episode, 2000)
- Rob Acosta
- character layout artist (1 episode, 2001)
- Oreste Canestrelli
- character layout artist (1 episode, 2001)
- Bill Riling
- character layout artist (1 episode, 2001)
- John Berman
- background layout artist (1 episode, 2002)
- Todd Uyeminami
- character layout artist (1 episode, 2002)
- Luke Brookshier
- animation layout artist (1 episode, 2004)
- Annemarie Brown
- layout artist (1 episode, 2005)
- Steve Socki
- animation timer (1 episode, 2005)
- Andy Chen
- background layout artist (1 episode, 2006)
- Holly du Rivage
- animation timer (1 episode, 2006)
- Michael Gerard
- animation timer (1 episode, 2006)
- Alex Lee
- background layout artist (1 episode, 2006)
- Tisha Leung
- animation layout artist (1 episode, 2006)
- Ted Stearn
- animation layout artist (1 episode, 2006)
- Greg Reyna
- animation timer (1 episode, 2007)
- Loren Smith
- animation producer (1 episode, 2007)
- David Spencer
- background layout artist (1 episode, 2007)
- Randol Eagles
- background layout artist (1 episode, 2008)
- Jeff Myers
- retake layout: Film Roman (1 episode, 2009)
- Kimball Shirley
- background design clean-up (1 episode, 2009)
- Larry Smith
- animation checker (1 episode, 2009)
- Bailey Cooper
- background designer (1 episode, 2025)
- Kimmie King
- retake animator (1 episode, 2025)
- Matthew Laskowski
- background design supervisor (1 episode, 2025)
- Maneen Mehta
- character designer (1 episode, 2025)
- Charlene Moncrief
- animation checker (1 episode, 2025)
- Nathan Palm
- character designer (1 episode, 2025)
