| Darsteller | Rolle |
|---|---|
| Max Wright | Willie Tanner (103) |
| Anne Schedeen | Kate Tanner (103) |
| Andrea Elson | Lynn Tanner (103) |
| Benji Gregory | Brian Tanner (102) Brian Tanner aka Alf Tanner |
| Paul Fusco | ALF (99) ALF aka Wayne Schlegel (2) ALF / Rick Fusterman Crime Stoppers Host / ALF |
| John LaMotta | Trevor Ochmonek (41) |
| Liz Sheridan | Raquel Ochmonek (36) |
| Charles Nickerson | Eric Tanner (16) |
| Josh Blake | Jake Ochmonek (15) |
| Michu Meszaros | ALF (10) Gordon 'ALF' Shumway |
| Anne Meara | Dorothy Halligan (9) |
| Jim J. Bullock | Neal Tanner (5) |
| Andrea Covell | Jody (5) |
| Bill Daily | Larry (3) Dr. Lawrence 'Larry' Dykstra |
| David Ogden Stiers | Flakey Pete (2) |
| Marcia Wallace | Mrs. Lyman (2) |
| Fran Drescher | Roxanne |
| David Spade | Larry Slotkin |
| Carla Gugino | Laura |
| Dan Castellaneta | Steve Michaels |
| David Alan Grier | FBI #1 |
| Jack Riley | Elliot Carlin |
| Denise Dowse | FBI #4 |
| Sam Whipple | Sam (3) |
| Paul Dooley | Whizzer (3) |
| Dean Cameron | Robert Sherwood (3) |
| Raye Birk | Officer Griswald (2) Lenny Scott |
| Mickey Jones | Artie (3) |
| Francis X. McCarthy | Alien Task Force Officer Darnell Valentine (3) |
| Tracey Walter | Gravel Gus (3) |
| Linda Hoy | Bernice Billings (3) |
| Michael Berryman | Rick (3) |
| Beverly Archer | Mrs. Byrd (3) |
| Nedra Volz | Cat Woman (3) |
| Fox Langenkamp | Stacy Langenkamp (3) |
| Alan David Gelman | Delivery Man (3) |
| Lucky | Cat (3) |
| Carlos Lacamara | Doug Gould (2) |
| Molly Hagan | Denise (2) |
| Rich Little | Self (2) |
| Mark Clayman | Randy (2) |
| Ed McMahon | Self (2) |
| Adrienne Hampton | Diana (2) |
| David Leisure | Brandon Tartikoff Nick 'Nicky' |
| Hal Havins | Officer Gaffney (2) |
| Teresa Ganzel | The Matinee Lady (2) |
| Patricia Ayame Thomson | Nurse #2 (2) |
| Lewis Arquette | Ed Billings (2) |
| Michael Champion | Sgt. Matt Fox (2) |
| David Knell | Dudley (2) |
| Frederick De Cordova | Self (2) |
| Connie Richmond | Nurse #1 (2) |
| Nick Angotti | Police Officer (2) |
| Elisha Cook Jr. | Uncle Albert (2) |
| Judy Landers | Brenda (2) |
| Carl Franklin | Dr. Willoughby (2) |
| Keri Houlihan | Tiffany (2) |
| Cleavon Little | George Foley (2) |
| Norman Lee Harris | Jeff (2) |
| Ricky Paull Goldin | Danny Duckworth (2) |
| Wendy Oates | Stephanie Stephanie Taylor |
| Randy Simper | Herb (2) |
| Stephanie Hagen | Sylvia (2) |
| Eugene Greytak | Pope John Paul II (2) |
| Tim Wade | The Stage Manager (2) |
| Robert P. Lieb | Uncle Rocky (2) |
| Shaggy Murphy | Jason (2) |
| Glenn Withrow | Richard (2) |
| James Brown III | Little Boy (2) |
| Ted Raimi | Julius |
| Richard Fancy | Colonel Halsey |
| Timothy Stack | Jim |
| Nancy Lenehan | Laverne Litwak |
| Shirley Prestia | Delores |
| Aaron Lustig | Willie #2 |
| Doug Ballard | Lieutenant Alden |
| Peter Iacangelo | Lee Fraiser |
| Jeff Doucette | Scooter |
| John Apicella | Man |
| Meshach Taylor | Addison |
| Jack Armstrong | Ben |
| Larry Hankin | Andrew Seminick, Burglar |
| Robert Costanzo | Tow truck driver Bert |
| Larry Poindexter | Sergeant Armstrong |
| Phil Leeds | Jack |
| Richard Roat | Walter Burke |
| Dale Raoul | Rita |
| Joe Colligan | Alexander |
| Robert Alan Beuth | Howard |
| Henry G. Sanders | George |
| Randee Heller | Elaine Ochmonek |
| Jesse D. Goins | Doug |
| Al Fann | Workman |
| Eric Christmas | Bernie |
| Nancy Linari | Mary |
| Kathleen Freeman | Betty Susla |
| Fran Bennett | Mrs. Watson |
| Sherman Howard | Officer |
| Bob Larkin | Customer at garage sale |
| Kenneth Tigar | FBI #2 |
| Todd Susman | Jim 'Jimbo' Hutchinson |
| Amzie Strickland | Rebecca |
| Frances Bay | Louise Beaumont |
| Dorothy Lyman | Maura Norris |
| Ian Abercrombie | British Announcer |
| Lee Ryan | Carl Buck |
| Bob Bancroft | Willie #1 |
| Dr. Joyce Brothers | Dr. Joyce Brothers |
| Michael Des Barres | Eddie |
| Lela Ivey | Maxine |
| Edward Edwards | Brian, Sr. |
| Robert Pine | Father |
| Holly Fields | Joanie |
| Gregory Cooke | Michael |
| Joe Namath | Joe Namath |
| Bob Denver | Gilligan |
| Joseph V. Perry | Mr. Polniakoff |
| Tara Karsian | Ellen |
| Martin Doyle | Mr. Duncan |
| Clyde Kusatsu | Skydiver |
| Earl Boen | Warren |
| Archie Hahn | Bill Loman |
| Sandy Duncan | Self |
| David Wohl | TV Shrink |
| Geoffrey Blake | Lizard |
| Bruno Alexander | Sabato Springs Man |
| Jonathan Schmock | Rex Savage |
| Allyce Beasley | Margaret |
| Robert Gallo | Workman |
| Arthur Rosenberg | Mr. Defoe |
| Dan Gilvezan | Harry |
| Mark Blankfield | Eric, Sr. |
| Richard McKenzie | Nick Susla |
| Ron Steelman | John |
| Joseph Maher | Angel Bob |
| Marcia Firesten | Betsy |
| Jed Mills | Dad |
| Bunny Summers | Bunny |
| Bill Wiley | Farmer |
| Bill Brochtrup | Charlie |
| Charles Dougherty | Phil |
| Pamella D'Pella | Denise |
| Douglas Warhit | Exterminator |
| Stanley DeSantis | Minister |
| Mitchell Group | Man |
| Darrow Igus | Ron |
| Sandy Freeman | Sandy |
| Judith-Marie Bergan | Marilyn Geiser |
| Phillip Gordon | Luis Mancia |
| Kip Gilman | Lloyd Ruben |
| John Pinette | Howie Anderson |
| Fred Goss | Delivery Man |
| Mary Jo Catlett | Mary Jo |
| Beau Dremann | Tim |
| Joe Mays | Ron |
| Brian Mitchell | Congressman Nathan Peal |
| Pat Cochran | Waiter |
| Pete Willcox | Aaron King |
| Tom La Grua | Marshall |
| Anne Ramsey | Ethel Buttonwood |
| Melanie Manos | Julie |
| Casey Kasem | Self |
| Lou Felder | Senator Gil Hossenfeffer |
| Garry Goodrow | Consumer Ed |
| Phil Rubenstein | Customer at garage sale |
| John Miranda | Brother Ed |
| Alex Henteloff | Mr. Rasmussen |
| Jessica James | Dorothy |
| Steve Sweeney | Airline Worker |
| Alan Hale | Skipper Jonas Grumby |
| Kurt McKinney | Scott |
| Nan McNamara | Secretary to Brandon Tartikoff |
| Brad Thornton | Skydiver Collins |
| Myrna White | Myrna |
| Rob Neukirch | Howard |
| Thomas Callaway | Animal |
| Carl Carlsson | Rudolph the Plate Spinner |
| Diane Cary | Ms. Wine |
| Brandon Tartikoff | Self |
| Kevin Bourland | Man |
| Suzanne Hunt | Miss Bartley |
| Nicole Dubuc | Hannah |
| Melissa Francis | Miss Williams |
| Darwin Joston | Dog-Pound Attendant |
| Ivan Bonar | Dean Houseman |
| Wayne Powers | Sid |
| Richard Sanders | Hogarth |
| Logan Ramsey | Vince |
| Tim Rossovich | Instructor |
| Emily Schulman | Girl |
| Parker Whitman | FBI #3 |
| Vince McKewin | Stele |
| Dawn Wells | Mary Ann Summers |
| Francesca | Dog |
| H. Ray Huff | Sid |
| Hilary Thompson | Betty |
| Lindy Nisbet | Mavis |
| Tommy Newsom | Self |
| Tony Lober | The Intruder |
| David Horowitz | Self |
| Rebecca Boone | Andrea |
| Donna LaBrie | Mother |
| Tom Patchett | Interviewer |
| Blackie Dammett | Darnell Valentine |
| Lisle Wilson | Police Officer |
| Mark Levine | Pizza Delivery Man |
| Carrie Lorraine | Heidi |
| Carol Williard | Dr. Laura Schrock |
| Lisa Buckley | Rhonda |
| Bob Fappiano | Skip |
| Michael Lemon | Nolan |
| Susan Lavine | Skydiver |
| Randy Sutter | Butch |
| Kristen Taylor Johnson | Alison |
| Stephen Seigel | Jack Rabbit Courier |
| Bill McIntyre | Officer |
| Joshua Rudoy | Spencer |
| Mimi Davis | Lady |
| Pamela McMyler | Customer at garage sale |
| Russell Johnson | Professor Roy Hinkley |
| Bob Bendetson | Monk |
| Michele Brustin | Self |
| Melanie Noble | Felicia Burke |
| Joan Embery | Self |
| Chris Sprister | Monk |
| Harry Shearer | Larry / President |
| Michael Alaimo | Monk |
| Deborah White | Monica |
| Frank Woods | Luau guest |
| John McLaughlin | Self |