- Paul Fusco
- Â ALF / ... 1 episode, 1986-2004
- Max Wright
- Â Willie Tanner 103 episodes, 1986-2004
- Anne Schedeen
- Â Kate Tanner 103 episodes, 1986-2004
- Andrea Elson
- Â Lynn Tanner 103 episodes, 1986-2004
- Benji Gregory
- Â Brian Tanner 103 episodes, 1986-2004
- John LaMotta
- Â Trevor Ochmonek 41 episodes, 1986-2004
- Liz Sheridan
- Â Raquel Ochmonek 35 episodes, 1986-2004
- Josh Blake
- Â Jake Ochmonek 15 episodes, 1988-1989
- Mihaly 'Michu' Meszaros
- Â ALF / ... 2 episodes, 1986-2004
- Anne Meara
- Â Dorothy Halligan 9 episodes, 1987-1989
- Jim J. Bullock
- Â Neal Tanner 5 episodes, 1989-1990
- Bill Daily
- Â Larry / ... 4 episodes, 1987-1989
- Beverly Archer
- Â Mrs. Byrd 3 episodes, 1988
- Dean Cameron
- Â Robert Sherwood 3 episodes, 1989-1990
- Andrea Covell
- Â Jody 5 episodes, 1986-1988
- Raye Birk
- Â Officer Griswald / ... 3 episodes, 1987-1988
- Paul Dooley
- Â Whizzer 3 episodes, 1987-1989
- Stacy Langenkamp
- Â Stacy Langenkamp 3 episodes, 1990
- Cleavon Little
- Â George Foley 2 episodes, 1987
- Nick Angotti
- Â Police Officer 2 episodes, 1987
- Ricky Paull Goldin
- Â Danny Duckworth 2 episodes, 1988-1989
- David Ogden Stiers
- Â Flakey Pete 2 episodes, 1988
- Rich Little
- Â Rich Little 2 episodes, 1988
- David Leisure
- Â Brandon Tartikoff / ... 2 episodes, 1987
- Keri Houlihan
- Â Tiffany 2 episodes, 1987
- Mark Clayman
- Â Randy 2 episodes, 1988-1989
- Wendy Oates
- Â Stephanie / ... 2 episodes, 1988-1989
- Teresa Ganzel
- Â The Matinee Lady 2 episodes, 1988
- Michael Champion
- Â Sgt. Matt Fox 2 episodes, 1988
- Lee Ryan
- Â Carl Buck 2 episodes, 1986-1987
- Marcia Wallace
- Â Mrs. Lyman 2 episodes, 1987
- Glenn Withrow
- Â Richard 2 episodes, 1987
- Tim Wade
- Â The Stage Manager 2 episodes, 1988
- Mickey Jones
- Â Artie 3 episodes, 1986-1987
- Stephanie Hagen
- Â Sylvia 2 episodes, 1988-1989
- Molly Hagan
- Â Denise 2 episodes, 1987
- David Knell
- Â Dudley 2 episodes, 1988
- Eugene Greytak
- Â Pope John Paul II 2 episodes, 1988
- Sam Whipple
- Â Sam 3 episodes, 1986-1987
- Carl Franklin
- Â Dr. Willoughby 2 episodes, 1987
- Frederick De Cordova
- Â Fred De Cordova 2 episodes, 1988
- Norman Lee Harris
- Â Jeff 2 episodes, 1988
- Linda Hoy
- Â Bernice Billings 3 episodes, 1987-1988
- Connie Richmond
- Â Nurse #1 2 episodes, 1987
- Michael Berryman
- Â Rick 3 episodes, 1988
- Robert P. Lieb
- Â Uncle Rocky 2 episodes, 1988
- Tracey Walter
- Â Gravel Gus 3 episodes, 1987-1988
- Alan David Gelman
- Â Delivery Man 3 episodes, 1986-1987
- Nedra Volz
- Â Cat Woman 3 episodes, 1987-1988
- Patricia Ayame Thomson
- Â Nurse #2 2 episodes, 1987
- Adrienne Hampton
- Â Diana 2 episodes, 1988
- Scott Brittingham
- Â Kelly 2 episodes, 1987
- Shaggy Murphy
- Â Jason 2 episodes, 1988
- James Brown III
- Â Little Boy 2 episodes, 1987
- Judy Landers
- Â Brenda 2 episodes, 1987
- Randy Simper
- Â Herb 1 episode, 1986-1988
- Carlos Lacamara
- Â Doug Gould 1 episode, 1988
- Hal Havins
- Â Officer Gaffney 1 episode, 1988
- Harry Shearer
- Â Larry / ... 1 episode, 1986-1989
- Ed McMahon
- Â Ed McMahon 2 episodes, 1988
- Larry Hankin
- Â Andrew Seminick, Burglar 1 episode, 1986
- Mary Jo Catlett
- Â Mary Jo 1 episode, 1986
- Robert Costanzo
- Â Tow truck driver Bert 1 episode, 1986
- Joe Namath
- Â Joe Namath 1 episode, 1986
- Kurt McKinney
- Â Scott 1 episode, 1986
- Darwin Joston
- Â Dog-Pound Attendant 1 episode, 1986
- Vince McKewin
- Â Stele 1 episode, 1986
- Bob Denver
- Â Gilligan 1 episode, 1987
- Geoffrey Blake
- Â Lizard 1 episode, 1987
- Earl Boen
- Â Warren 1 episode, 1987
- Brian Stokes Mitchell
- Â Congressman Nathan Peal 1 episode, 1987
- Archie Hahn
- Â Bill Loman 1 episode, 1987
- Joshua Rudoy
- Â Spencer 1 episode, 1987
- Douglas Warhit
- Â Exterminator 1 episode, 1987
- Suzanne Hunt
- Â Miss Bartley 1 episode, 1987
- Garry Goodrow
- Â Consumer Ed 1 episode, 1987
- John Miranda
- Â Brother Ed 1 episode, 1987
- Bill McIntyre
- Â Officer 1 episode, 1987
- Elisha Cook Jr.
- Â Uncle Albert 1 episode, 1988
- Kathleen Freeman
- Â Betty Susla 1 episode, 1988
- Anne Ramsey
- Â Ethel Buttonwood 1 episode, 1988
- Dorothy Lyman
- Â Maura Norris 1 episode, 1988
- Michael Des Barres
- Â Eddie 1 episode, 1988
- Joseph Maher
- Â Angel Bob 1 episode, 1988
- Nancy Linari
- Â Mary 1 episode, 1988
- Martin Doyle
- Â Mr. Duncan 1 episode, 1988
- Holly Fields
- Â Joanie 1 episode, 1989
- David Alan Grier
- Â FBI #1 1 episode, 1989
- Randee Heller
- Â Elaine Ochmonek 1 episode, 1989
- Todd Susman
- Â Jim 'Jimbo' Hutchinson 1 episode, 1989
- Melissa Francis
- Â Miss Williams 1 episode, 1989
- David Wohl
- Â TV Shrink 1 episode, 1989
- Judith-Marie Bergan
- Â Marilyn Geiser 1 episode, 1989
- Peter Iacangelo
- Â Lee Fraiser 1 episode, 1989
- Pete Willcox
- Â Aaron King 1 episode, 1989
- David Horowitz
- Â David Horowitz 1 episode, 1989
- Rob Neukirch
- Â Howard 1 episode, 1989
- Dan Castellaneta
- Â Steve Michaels 1 episode, 1990
- Casey Kasem
- Â Casey Kasem 1 episode, 1990
- Allyce Beasley
- Â Margaret 1 episode, 1990
- Richard Fancy
- Â Colonel Halsey 1 episode, 1990
- Kip Gilman
- Â Lloyd Ruben 1 episode, 1990
- Jeff Doucette
- Â Scooter 1 episode, 1990
- Lisle Wilson
- Â Police Officer 1 episode, 1986
- Arthur Rosenberg
- Â Mr. Defoe 1 episode, 1986
- Thomas Callaway
- Â Animal 1 episode, 1986
- Carrie Lorraine
- Â Heidi 1 episode, 1986
- Myrna White
- Â Myrna 1 episode, 1986
- Robert Pine
- Â Father 1 episode, 1987
- Alan Hale Jr.
- Â Skipper Jonas Grumby 1 episode, 1987
- Diane Cary
- Â Ms. Wine 1 episode, 1987
- Richard Roat
- Â Walter Burke 1 episode, 1987
- Lou Felder
- Â Senator Gil Hossenfeffer 1 episode, 1987
- Tom Patchett
- Â Interviewer 1 episode, 1987
- Michael Alaimo
- Â Monk 1 episode, 1987
- Mitchell Group
- Â Man 1 episode, 1987
- Sandy Duncan
- Â Sandy Duncan 1 episode, 1988
- Logan Ramsey
- Â Vince 1 episode, 1988
- Richard McKenzie
- Â Nick Susla 1 episode, 1988
- Joe Colligan
- Â Alexander 1 episode, 1988
- Fred Goss
- Â Delivery Man 1 episode, 1988
- Lindy Nisbet
- Â Mavis 1 episode, 1988
- Carla Gugino
- Â Laura 1 episode, 1989
- Kenneth Tigar
- Â FBI #2 1 episode, 1989
- Nancy Lenehan
- Â Laverne Litwak 1 episode, 1989
- Jonathan Schmock
- Â Rex Savage 1 episode, 1989
- Fran Bennett
- Â Mrs. Watson 1 episode, 1989
- Dale Raoul
- Â Rita 1 episode, 1989
- Bill Wiley
- Â Farmer 1 episode, 1989
- Charles Dougherty
- Â Phil 1 episode, 1989
- Bruno Alexander
- Â Sabato Springs Man 1 episode, 1989
- Kevin Bourland
- Â Man 1 episode, 1989
- John Pinette
- Â Howie Anderson 1 episode, 1990
- Stanley DeSantis
- Â Minister 1 episode, 1990
- Edward Edwards
- Â Brian, Sr. 1 episode, 1990
- Doug Ballard
- Â Lieutenant Alden 1 episode, 1990
- Gregory Cooke
- Â Michael 1 episode, 1990
- Richard Sanders
- Â Hogarth 1 episode, 1986
- Francis X. McCarthy
- Â Alien Task Force Officer Darnell Valentine 3 episodes, 1986-1987
- Bunny Summers
- Â Bunny 1 episode, 1986
- Ivan Bonar
- Â Dean Houseman 1 episode, 1986
- Jed Mills
- Â Dad 1 episode, 1986
- Mark Levine
- Â Pizza Delivery Man 1 episode, 1986
- Russell Johnson
- Â Professor Roy Hinkley 1 episode, 1987
- Jessica James
- Â Dorothy 1 episode, 1987
- Philip Gordon
- Â Luis Mancia 1 episode, 1987
- John McLaughlin
- Â John McLaughlin 1 episode, 1987
- Mimi Davis
- Â Lady 1 episode, 1987
- Stephen Seigel
- Â Jack Rabbit Courier 1 episode, 1987
- Michele Brustin
- Â Michele Brustin 1 episode, 1987
- Hilarie Thompson
- Â Betty 1 episode, 1988
- Nicole Dubuc
- Â Hannah 1 episode, 1988
- Robert Alan Beuth
- Â Howard 1 episode, 1988
- Timothy Stack
- Â Jim 1 episode, 1989
- Steve Sweeney
- Â Airline Worker 1 episode, 1989
- Alex Henteloff
- Â Mr. Rasmussen 1 episode, 1989
- Emily Schulman
- Â Girl 1 episode, 1989
- Jesse D. Goins
- Â Doug 1 episode, 1989
- Bob Bancroft
- Â Willie #1 1 episode, 1989
- Marcia Firesten
- Â Betsy 1 episode, 1989
- Larry Poindexter
- Â Sergeant Armstrong 1 episode, 1990
- Mark Blankfield
- Â Eric, Sr. 1 episode, 1990
- Tara Karsian
- Â Ellen 1 episode, 1990
- Joseph V. Perry
- Â Mr. Polniakoff 1 episode, 1990
- Blackie Dammett
- Â Darnell Valentine 1 episode, 2004
- Meshach Taylor
- Â Addison 1 episode, 1986
- Clyde Kusatsu
- Â Skydiver 1 episode, 1986
- Carol Williard
- Â Dr. Laura Schrock 1 episode, 1986
- Sandy Freeman
- Â Sandy 1 episode, 1986
- Dawn Wells
- Â Mary Ann Summers 1 episode, 1987
- Lewis Arquette
- Â Ed Billings 1 episode, 1987-1988
- Al Fann
- Â Workman 1 episode, 1987
- Deborah White
- Â Monica 1 episode, 1987
- Bob Larkin
- Â Customer at garage sale 1 episode, 1987
- H. Ray Huff
- Â Sid 1 episode, 1988
- Ted Raimi
- Â Julius 1 episode, 1989
- Dan Gilvezan
- Â Harry 1 episode, 1989
- Aaron Lustig
- Â Willie #2 1 episode, 1989
- Tom La Grua
- Â Marshall 1 episode, 1989
- Joe Mays
- Â Ron 1 episode, 1989
- Ron Steelman
- Â John 1 episode, 1989
- Rebecca Boone
- Â Andrea 1 episode, 1989
- Fran Drescher
- Â Roxanne 1 episode, 1990
- Sherman Howard
- Â Officer 1 episode, 1990
- Bill Brochtrup
- Â Charlie 1 episode, 1990
- Wayne Powers
- Â Sid 1 episode, 1990
- Tim Rossovich
- Â Instructor 1 episode, 1986
- Pamela McMyler
- Â Customer at garage sale 1 episode, 1987
- Randy Sutter
- Â Butch 1 episode, 1987
- Robert Gallo
- Â Workman 1 episode, 1987
- Pamella D'Pella
- Â Denise 1 episode, 1988
- Henry G. Sanders
- Â George 1 episode, 1989
- Parker Whitman
- Â FBI #3 1 episode, 1989
- Tony Lober
- Â The Intruder 1 episode, 1989
- David Spade
- Â Larry Slotkin 1 episode, 1990
- Michael Lemon
- Â Nolan 1 episode, 1986
- Phil Rubenstein
- Â Customer at garage sale 1 episode, 1987
- Melanie Noble
- Â Felicia Burke 1 episode, 1987
- Kristen Taylor Johnson
- Â Alison 1 episode, 1987
- Denise Dowse
- Â FBI #4 1 episode, 1989
- Shirley Prestia
- Â Delores 1 episode, 1989
- John Apicella
- Â Man 1 episode, 1990
- Susan Lavine
- Â Skydiver 1 episode, 1986
- Darrow Igus
- Â Ron 1 episode, 1987
- Brandon Tartikoff
- Â Brandon Tartikoff 1 episode, 1990
- Brad Thornton
- Â Skydiver Collins 1 episode, 1986
- Nan McNamara
- Â Secretary to Brandon Tartikoff 1 episode, 1987
- Carl Carlsson
- Â Rudolph the Plate Spinner 1 episode, 1990
- Joyce Brothers
- Â Dr. Joyce Brothers 1 episode, 1988
- Tommy Newsom
- Â Tommy Newsom 1 episode, 1988
- Joan Embery
- Â Joan Embery 1 episode, 1988
- Francesca
- Â Dog 1 episode, 1988
- Charlie Dell
- Â Guzik 1 episode, 1989
- Allan Trautman
- Â Schayman 1 episode, 1989
- Erica Rogers
- Â Margaret Thatcher 1 episode, 1989
- Guy Killum
- Â Schmedley 1 episode, 1989
- Francine Witkin
- Â Francine 1 episode, 1989
- Michelle Mizla
- Â Nanny #3 1 episode, 1989
- Jodie Johnson
- Â Ms. Goodbodie 1 episode, 1989
- Jeannette Miller
- Â Nanny #1 1 episode, 1989
- Jim Morris
- Â Ronald Reagan 1 episode, 1989
- Delores Albin
- Â Nanny #2 1 episode, 1989
- Frances Bay
- Â Louise Beaumont 1 episode, 1990
- Amzie Strickland
- Â Rebecca 1 episode, 1990
- Phil Leeds
- Â Jack 1 episode, 1990
- Eric Christmas
- Â Bernie 1 episode, 1990
- Jack Armstrong
- Â Ben 1 episode, 1990
- Charles Nickerson
- Â Eric Tanner (uncredited) 16 episodes, 1989-1990
- Lucky
- Â Cat (uncredited) 3 episodes, 1986-1987
- Lisa Buckley
- Â Rhonda (uncredited) 1 episode, 1986
- Bob Fappiano
- Â Skip (uncredited) 1 episode, 1986
- Jack Riley
- Â Elliot Carlin (uncredited) 1 episode, 1987
- Lori Randolph
- Â Little Girl (uncredited) 1 episode, 1987
- Melanie Manos
- Â Julie (uncredited) 1 episode, 1987
- Bob Bendetson
- Â Monk (uncredited) 1 episode, 1987
- Chris Sprister
- Â Monk (uncredited) 1 episode, 1987
- Beau Dremann
- Â Tim (uncredited) 1 episode, 1988
- Patrick Cochran
- Â Waiter (uncredited) 1 episode, 1988
- Ian Abercrombie
- Â British Announcer (uncredited) 1 episode, 1989
- John Ingle
- (uncredited) 1 episode, 1989
- Frank Woods
- Â Luau guest (uncredited) 1 episode, 1989
- Lela Ivey
- Â Maxine (uncredited) 1 episode, 1990
- Donna LaBrie
- Â Mother (uncredited) 1 episode, 1990