- Lena Headey
- Â Sarah Connor 31 episodes, 2008-2009
- Thomas Dekker
- Â John Connor 31 episodes, 2008-2009
- Summer Glau
- Â Cameron Phillips / ... 31 episodes, 2008-2009
- Richard T. Jones
- Â James Ellison 31 episodes, 2008-2009
- Brian Austin Green
- Â Derek Reese 23 episodes, 2008-2009
- Garret Dillahunt
- Â Cromartie / ... 18 episodes, 2008-2009
- Shirley Manson
- Â Catherine Weaver 17 episodes, 2008-2009
- Leven Rambin
- Â Riley Dawson 11 episodes, 2008-2009
- Stephany Jacobsen
- Â Jesse Flores 10 episodes, 2008-2009
- Dean Winters
- Â Charley Dixon 9 episodes, 2008-2009
- Mackenzie Brooke Smith
- Â Savannah Weaver / ... 6 episodes, 2008-2009
- Shane Edelman
- Â Matt Murch 6 episodes, 2008-2009
- Sonya Walger
- Â Michelle Dixon 5 episodes, 2008
- Busy Philipps
- Â Kacy Corbin 5 episodes, 2008-2009
- Jonathan Jackson
- Â Kyle Reese 4 episodes, 2008-2009
- Sabrina Páez
- Â Chola 4 episodes, 2008-2009
- Matt McColm
- Â Vick Chamberlain 3 episodes, 2008
- Brendan Hines
- Â Andy Goode 3 episodes, 2008
- Jesse Garcia
- Â Carlos 3 episodes, 2008
- Catherine Dent
- Â Agent Greta Simpson 3 episodes, 2008
- Kristina Apgar
- Â Cheri Westin 3 episodes, 2008
- Dorian Harewood
- Â Dr. Boyd Sherman 3 episodes, 2008
- Jonathan Sadowski
- Â Sayles 3 episodes, 2008
- Ned Bellamy
- Â Ed Winston 3 episodes, 2008-2009
- Luis Chávez
- Â Morris 3 episodes, 2008
- Gregg Perrie
- Â Aaron 3 episodes, 2008-2009
- Edoardo Ballerini
- Â Timms 2 episodes, 2008
- Phil Morris
- Â Miles Dyson 1 episode, 2008-2009
- Aldo Gonzalez
- Â Cholo #1 1 episode, 2008
- Mark Ivanir
- Â Dmitri Shipkov 2 episodes, 2008
- Leah Pipes
- Â Jody 2 episodes, 2008
- James Urbaniak
- Â Cafe Manager / ... 2 episodes, 2008
- Andre Royo
- Â Sumner 2 episodes, 2008
- Peter Mensah
- Â General Perry / ... 2 episodes, 2008
- Charlayne Woodard
- Â Terissa Dyson 2 episodes, 2008
- Carlos Sanz
- Â Father Armando Bonilla 2 episodes, 2008-2009
- Dean Norris
- Â Nelson 2 episodes, 2008
- Theo Rossi
- Â Lieutenant Dietze 2 episodes, 2009
- Jillian Armenante
- Â Rita 2 episodes, 2008
- Fay Wolf
- Â Agent Lila Ellison 2 episodes, 2008
- Chad L. Coleman
- Â Queeg 2 episodes, 2009
- Jeffrey Pierce
- Â T-888 / ... 2 episodes, 2009
- Max Perlich
- Â Walsh 2 episodes, 2008-2009
- Chris Ellis
- Â Hayes 2 episodes, 2009
- John De Vito
- Â Young John 2 episodes, 2008-2009
- Mark Bloom
- Â FBI Evidence Clerk 2 episodes, 2008
- Yuri Lowenthal
- Â Christopher Garvin 2 episodes, 2009
- Keith Pillow
- Â Mr. Bianchi 2 episodes, 2008
- Erin Fleming
- Â Goodnow / ... 2 episodes, 2009
- Krishna Cole
- Â Blake 2 episodes, 2009
- Johnny D'Agostino
- Â Bartender 2 episodes, 2008
- Sanjay Madhav
- Â Dr. Manny D'Costa / ... 1 episode, 2008-2009
- Savannah Jayde
- Â Gina 1 episode, 2008
- Obren Milanovic
- Â Bloom 1 episode, 2008
- Cory Tucker
- Â Security Stan 1 episode, 2008
- Vinni Ali'i Mesa
- Â Employee 1 episode, 2008
- Ray Conchado
- Â Security Guard 1 episode, 2008
- Owain Yeoman
- Â Cromartie 1 episode, 2008
- Julie Ann Emery
- Â Nurse Hobson 1 episode, 2009
- Rebecca Creskoff
- Â Anne Fields 1 episode, 2008
- Brian Bloom
- Â Carter 1 episode, 2008
- Tony Amendola
- Â Enrique Salceda 1 episode, 2008
- Angela Gots
- Â Maria 1 episode, 2008
- Billy Lush
- Â Eric 1 episode, 2008
- Adam Godley
- Â The Scientist 1 episode, 2008
- Craig Fairbrass
- Â Fake Sarkissian 1 episode, 2008
- Nick Wechsler
- Â Deputy Ridge 1 episode, 2008
- Andy Umberger
- Â Davidson 1 episode, 2008
- Samantha Krutzfeldt
- Â Lauren Fields 1 episode, 2008
- Traber Burns
- Â Chief of Staff 1 episode, 2008
- Oren Dayan
- Â Mike Silver 1 episode, 2008
- John Pyper-Ferguson
- Â George McCarthy 1 episode, 2009
- Alex Carter
- Â Ko Samuels 1 episode, 2009
- Michelle Arthur
- Â Dana 1 episode, 2009
- Richard Schiff
- Â Charles Fischer / ... 1 episode, 2008
- Todd Stashwick
- Â Myron Stark / ... 1 episode, 2008
- Jon Huertas
- Â Trevor 1 episode, 2008
- Lee Thompson Young
- Â Agent Stewart 1 episode, 2008
- Omid Abtahi
- Â Sumner 1 episode, 2008
- Karina Logue
- Â Barbara Chamberlain 1 episode, 2008
- Carlos Jacott
- Â David Fields 1 episode, 2008
- Danny Mora
- Â Photographer 1 episode, 2008
- Dinah Lenney
- Â Alan Park / ... 1 episode, 2008-2009
- Joshua Malina
- Â Agent Auldridge 1 episode, 2009
- Manny Montana
- Â Hector 1 episode, 2009
- Larry Cedar
- Â Detective Crayton 1 episode, 2009
- Alison Martin
- Â Molly Malloy 1 episode, 2009
- Sasha Roiz
- Â Police Officer 1 episode, 2008
- Bruce Davison
- Â Dr. Peter Silberman 1 episode, 2008
- Michael Hyatt
- Â Dr. Barbara Morris 1 episode, 2008
- Emilio Rivera
- Â Mexican Police Chief 1 episode, 2008
- William Brent
- Â Marty Bedell 1 episode, 2008
- Bernard White
- Â Sarah's Doctor 1 episode, 2008
- Johnny Sneed
- Â Roger Shafer 1 episode, 2008
- David Michie
- Â Police Officer 1 episode, 2008
- Alanna Masterson
- Â Zoe McCarthy 1 episode, 2009
- Sashen Naicker
- Â Night Tech 1 episode, 2009
- Paul Schulze
- Â Carl Greenway 1 episode, 2008
- Derek Riddell
- Â Lachlan Weaver 1 episode, 2008
- Barry Livingston
- Â Pete 1 episode, 2008
- Roger Guenveur Smith
- Â Sac Federici 1 episode, 2008
- Will Rothhaar
- Â Martin Bedell 1 episode, 2008
- Neil Hopkins
- Â Mr. Harris 1 episode, 2008
- Adam Busch
- Â Charlie Fischer 1 episode, 2008
- Eric Steinberg
- Â Alex Akagi 1 episode, 2008
- Douglas Bennett
- Â Guard 1 episode, 2008
- Mary Alexandra Stiefvater
- Â Young Ruby 1 episode, 2008
- Aurora Antonio
- Â Wiseass 1 episode, 2008
- Alicia Benavides
- Â Waitress 1 episode, 2008
- Adam Wylie
- Â Henry Douglas, Jr. 1 episode, 2009
- Laura Regan
- Â Dr. Felicia Burnett 1 episode, 2009
- Gina Gallego
- Â Dr. Martinez 1 episode, 2009
- Jill Remez
- Â Teacher 1 episode, 2009
- William Stanford Davis
- Â Pastor Jonas 1 episode, 2008
- Haley Hudson
- Â Sydney Fields 1 episode, 2008
- Eddie Shin
- Â Xander Akagi 1 episode, 2008
- Beau Billingslea
- Â General Hobbs 1 episode, 2008
- Michael Dempsey
- Â Detective 1 episode, 2008
- Chad Brummett
- Â FBI Agent 1 episode, 2008
- John Kelly
- Â Baldwin 1 episode, 2008
- Branden Morgan
- Â Rudolph Valentino 1 episode, 2008
- Alex Castillo
- Â Manny 1 episode, 2008
- Ron Butler
- Â Social Worker 1 episode, 2008
- Connor Trinneer
- Â Sheriff Alvan McKinley 1 episode, 2009
- Cyd Strittmatter
- Â Diana Winston 1 episode, 2009
- Leslie Thurston
- Â Nurse 1 episode, 2009
- Ryan Kelley
- Â Derek at 15 1 episode, 2008
- Patrick Kilpatrick
- Â Triple-Eight Terminator 1 episode, 2008
- Alex Veadov
- Â Russian Man 1 episode, 2008
- Greg Eagles
- Â Crewman #1 1 episode, 2008
- Lisa Canning
- Â News Anchor 1 episode, 2008
- Aaron James Cash
- Â Terminator 1 episode, 2008
- Brian Atkinson
- Â Highway Guy 1 episode, 2008
- Tommy Redmond Hicks
- Â Bradbury 1 episode, 2008
- Garvin Funches
- Â Police Officer 1 episode, 2008
- Christopher DeMaci
- Â Photographer 1 episode, 2008
- Tim Monsion
- Â Rupert Chandler 1 episode, 2008
- Danny Parker-Lopes
- Â Rivera 1 episode, 2008
- Tina Casciani
- Â Working Girl 1 episode, 2009
- Austin Highsmith Garces
- Â Debbie 1 episode, 2009
- Jamison Jones
- Â Harrison 1 episode, 2009
- Skyler Gisondo
- Â Kyle at 8 1 episode, 2008
- Alessandra Torresani
- Â Jordan Cowan 1 episode, 2008
- Zack Ward
- Â Wells 1 episode, 2008
- Javier Grajeda
- Â Detective 1 episode, 2008
- Mark Adair-Rios
- Â Mike 1 episode, 2008
- Marcus Chait
- Â Justin Tuck 1 episode, 2008
- Rene Heger
- Â Pyle 1 episode, 2008
- Jennifer Chang
- Â Receptionist 1 episode, 2008
- Lou George
- Â Fred Jeffers 1 episode, 2008
- Ambrit Millhouse
- Â Receptionist 1 episode, 2008
- Enrico Natale
- Â Customer 1 episode, 2008
- Andrew Ableson
- Â Moishe 1 episode, 2008
- William Charles Mitchell
- Â Pastor 1 episode, 2008
- Jason Grutter
- Â Police Officer 1 episode, 2008
- Chad Lindberg
- Â Deputy Simmons 1 episode, 2009
- Drew Rausch
- Â Rick 1 episode, 2009
- Luisa Vitor
- Â Receptionist 1 episode, 2009
- Floriana Lima
- Â Franny 1 episode, 2008
- Debra Wilson
- Â Lilian 1 episode, 2008
- Symba
- Â Field Reporter 1 episode, 2008
- Roberto Sanchez
- Â Desk Sergeant 1 episode, 2008
- Bruno Amato
- Â Gym Coach 1 episode, 2008
- Kit Pongetti
- Â Victoria 1 episode, 2008
- Gary Houston
- Â Mr. Ferguson 1 episode, 2008
- Hector Atreyu Ruiz
- Â Soldier 1 episode, 2008
- Scott Vance
- Â Detective Kaplan 1 episode, 2008
- David Cheaney
- Â Martin Bedell 1 episode, 2008
- Cooper Huckabee
- Â Salesman 1 episode, 2009
- Massi Furlan
- Â Delivery Man #2 1 episode, 2009
- Glenn Taranto
- Â Bardo 1 episode, 2008
- Sandra Purpuro
- Â Agent Norgaard 1 episode, 2008
- Jeffrey Leaf
- Â Helmut 1 episode, 2008
- Preston James Hillier
- Â Security Guard 1 episode, 2008
- Joshua Wolf Coleman
- Â Clark 1 episode, 2008
- John Henry Whitaker
- Â Chet 1 episode, 2008
- TJ Kayama
- Â Minamoto 1 episode, 2008
- Josue Aguirre
- Â Bobo 1 episode, 2008
- Justin Alston
- Â Tom Jacobs 1 episode, 2008
- Deborah Martinez
- Â News Anchor 1 episode, 2008
- Linda Shing
- Â Dolores 1 episode, 2008
- David Ortiz
- Â Guy #1 1 episode, 2008
- Susan Floyd
- Â Stella McCarthy 1 episode, 2009
- Dominic Flores
- Â Male Nurse 1 episode, 2009
- Linden Goh
- Â Fuller 1 episode, 2009
- Bobbi Sue Luther
- Â Bar Skank 1 episode, 2008
- Lisa Wilhoit
- Â Sales Assistant 1 episode, 2008
- Allen Evangelista
- Â Doug 1 episode, 2008
- Cornell Womack
- Â Dr. Walter Ostrowski 1 episode, 2008
- Sean Smith
- Â Dr. David Lyman 1 episode, 2008
- Jody Jaress
- Â Ruby 1 episode, 2008
- Genia Michaela
- Â Bank Teller 1 episode, 2008
- Ralph Cole Jr.
- Â Male Prostitute 1 episode, 2008
- Jake Soldera
- Â Elevator Boy 1 episode, 2008
- Noemi Dunbar
- Â TV Field Reporter 1 episode, 2008
- Troy A. Cephers
- Â Guard 1 episode, 2008
- Bill Tangradi
- Â Pool Attendant 1 episode, 2009
- Thomas Garner
- Â Mourner 1 episode, 2009
- Julie Remala
- Â Nurse 1 episode, 2009
- Joe Hursley
- Â Tristan Dewitt 1 episode, 2008
- Akie Kotabe
- Â Kendo 1 episode, 2008
- Kenneth Miller
- Â Boy 1 episode, 2008
- Amy Tolsky
- Â Housewife 1 episode, 2008
- Dylan Cash
- Â Byron 1 episode, 2008
- Eric Callero
- Â Will Chandler 1 episode, 2008
- Taira Soo
- Â Office Manager 1 episode, 2008
- Aixa Maldonado
- Â Hot Dog Vendor 1 episode, 2008
- Ray Chavez
- Â Old Rebel Soldier 1 episode, 2008
- Alexandra Raines Lewinson
- Â Marty's Mom 1 episode, 2008
- Jim Jansen
- Â Minister 1 episode, 2009
- Patrick Faucette
- Â Administrator 1 episode, 2009
- Bashir Salahuddin
- Â School Security Guard 1 episode, 2008
- Brandon Molale
- Â Big Cop 1 episode, 2008
- Ramona DuBarry
- Â Karen 1 episode, 2008
- Michael David Cheng
- Â Engineer 1 episode, 2008
- Ali Chen
- Â Secretary 1 episode, 2008
- Elise Ivy
- Â Female Student 1 episode, 2008
- Tony Wilde
- Â Eric Carlson 1 episode, 2008
- Garland Spencer
- Â Senior Cadet 1 episode, 2008
- Nicole Pettis
- Â Secretary 1 episode, 2009
- Tiya Sircar
- Â Zoey 1 episode, 2008
- Ally Maki
- Â Student 1 episode, 2008
- Karen-Eileen Gordon
- Â Kay 1 episode, 2008
- Shawn Prince
- Â Danny Dyson 1 episode, 2008
- Ray Laska
- Â Governor 1 episode, 2008
- Amro Salama
- Â Supervisor 1 episode, 2008
- Laura Leyva
- Â Doctor 1 episode, 2008
- Clark Koelsch
- Â Security Guard 1 episode, 2009
- Bailee Madison
- Â Little Girl 1 episode, 2008
- Cameron Van Hoy
- Â Guy #2 1 episode, 2008
- Jacob Witkin
- Â Announcer 1 episode, 2008
- Ace Gibson
- Â Slacker 1 episode, 2008
- Yolanda Lloyd Delgado
- Â Gail Silver 1 episode, 2008
- Charlene Lovings
- Â Holly 1 episode, 2008
- Jessica Makinson
- Â Mrs. Claire Young 1 episode, 2008
- Jullian Dulce Vida
- Â Cop 1 episode, 2008
- James Gleason
- Â Phil Dewitt 1 episode, 2008
- Jeanette O'Connor
- Â Donna Dewitt 1 episode, 2008
- Danny Socorro Martinez
- Â Dave 1 episode, 2008
- Ronnie Connell
- Â Nicholas 1 episode, 2008
- Claudia Santangelo
- Â Auto Shop Girl 1 episode, 2008
- Mario Orozco
- Â Jose 'Spyder' (uncredited) 3 episodes, 2008
- Sam Puefua
- Â Football Captain (uncredited) 2 episodes, 2008
- Bonnie Morgan
- Â Terminator Rosie (uncredited) 1 episode, 2008
- Chris Gann
- Â T-600 (uncredited) 1 episode, 2008
- Dennis Keiffer
- Â Sarkissian's Thug (uncredited) 1 episode, 2008
- Mark Kubr
- Â Russian Thug #1 (uncredited) 1 episode, 2008
- Brad Everett Young
- Â Scared Tourist (uncredited) 1 episode, 2008
- Timothy L. Raynor
- Â Fisherman (uncredited) 1 episode, 2008
- Marcus Collins
- Â Prizefighter (uncredited) 1 episode, 2008
- David Kilde
- Â Security Guard (uncredited) 1 episode, 2008
- Danielle Lozeau
- Â Hero Student (uncredited) 1 episode, 2008
- Chris Sanders
- Â Zeira Corp Exec (uncredited) 1 episode, 2008
- Nick Drago
- Â Speakeasy Dancer (uncredited) 1 episode, 2008
- Bevin Hamilton
- Â The Interrogator (uncredited) 1 episode, 2008
- Melinda Bennett
- Â Speakeasy Dancer (uncredited) 1 episode, 2008
- Arne Starr
- Â 1920s Man (uncredited) 1 episode, 2008
- Eric Shackelford
- Â UFO Conventioneer (uncredited) 1 episode, 2008
- Ginger Pauley
- Â Speakeasy Dancer (uncredited) 1 episode, 2008
- Kevin Sar
- Â Cadet (uncredited) 1 episode, 2008
- Matthew Herington
- Â Bedell's Platoon Member (uncredited) 1 episode, 2008
- Eduardo C. D'Angelo
- Â The Kid (uncredited) 1 episode, 2008
- David Pearl
- Â Sheriff (uncredited) 1 episode, 2008
- Lionel D. Carson
- Â Paul (uncredited) 1 episode, 2008
- Tavia Stroup
- Â Restaurant Patron (uncredited) 1 episode, 2008
- Z. Ray Wakeman
- Â LA Driver (uncredited) 1 episode, 2008
- Khristian Lupo
- Â Future Terminator (uncredited) 1 episode, 2008
- Becca Sweitzer
- Â Speakeasy Girl Dancer (uncredited) 1 episode, 2008
- Robert Grant
- Â Police Officer (uncredited) 1 episode, 2008
- Venk Modur
- Â Zera Corp Member (uncredited) 1 episode, 2008
- Nathan Sikes
- Â 1920s Police Officer (uncredited) 1 episode, 2008
- Sara Leon
- Â Talkative Child at Museum (uncredited) 1 episode, 2008
- Dave Colon
- Â L.A.P.D Motor Officer (uncredited) 1 episode, 2008
- Kyle Shaw
- Â Military Cadet #1 (uncredited) 1 episode, 2008
- Christine Fazzino
- Â Elevator Parent (uncredited) 1 episode, 2008
- Ron Riekki
- Â Funeral Goer (uncredited) 1 episode, 2008
- Peggy Ann O'Neal
- Â FBI Visitor (uncredited) 1 episode, 2008
- Nathan Smythe
- Â Speakeasy Dancer (uncredited) 1 episode, 2008
- Steve Blacksmith
- Â High School Student (uncredited) 1 episode, 2008
- Laura Lyman
- Â Camera Assistant (uncredited) 1 episode, 2008
- Gregory George Frank
- Â Mall Food Court Patron (uncredited) 1 episode, 2008
- Eros Mendoza
- Â Valet (uncredited) 1 episode, 2008
- Will Rodriguez
- Â Alex (uncredited) 1 episode, 2008
- Lance Strumpf
- Â Helicopter Pilot (uncredited) 1 episode, 2008
- Mitch L. Guy
- Â Party Kid (uncredited) 1 episode, 2008
- Jason Heck
- Â Seth (uncredited) 1 episode, 2008
- Ilya Jonathan Zaydenberg
- Â Military Base Guard (uncredited) 1 episode, 2008
- Brian Dennis Hartford
- Â Sheriff Deputy (uncredited) 1 episode, 2008
- Johnny Todd
- Â Decoy (uncredited) 1 episode, 2008
- Troy Butcher
- Â Auto Shop Kid (uncredited) 1 episode, 2008
- Cynthia Marie Hruschka
- Â Bank Manager (uncredited) 1 episode, 2008
- Kade Smith
- Â Fire Fighter (uncredited) 1 episode, 2008
- Jen Halperin
- Â Princess Aqualina (uncredited) 1 episode, 2008
- Aurelius DiBarsanti
- Â Platoon Member (uncredited) 1 episode, 2008
- Sam Ayers
- Â Worker #3 (uncredited) 1 episode, 2009
- Edward Conna
- Â Delivery Hit Man (uncredited) 1 episode, 2009
- Justin Gant
- Â Mike Thompson (uncredited) 1 episode, 2009
- Stephen DiCenzo
- Â Davey (uncredited) 1 episode, 2009
- Gregory Silva
- Â Morgue Attendant (uncredited) 1 episode, 2009
- Jason Rogers
- Â Cadet (uncredited) 1 episode, 2009