 | Steve Martin als Gil Buckman |
 | Mary Steenburgen als Karen Buckman |
 | Dianne Wiest als Helen Buckman Lampkin Bowman |
 | Jason Robards als Frank Buckman |
 | Rick Moranis als Nathan Huffner |
 | Tom Hulce als Larry Buckman |
 | Martha Plimpton als Julie Buckman-Lampkin Higgins |
 | Keanu Reeves als Tod Higgins |
 | Harley Jane Kozak als Susan Buckman |
 | Dennis Dugan als David Brodsky |
 | Joaquin Phoenix als Garry Buckman-Lampkin |
 | Eileen Ryan als Marilyn Buckman |
 | Helen Shaw als Grandma |
 | Jasen Fisher als Kevin Buckman |
 | Paul Linke als George Bowman |
 | Alisan Porter als Taylor Buckman |
| Zachary La Voy als Justin Buckman |
| Ivyann Schwan als Patty Huffner |
| Alex Burrall als Cool Buckman |
 | Lowell Ganz als Stan |
 | Rance Howard als Dean at College |
 | Max Elliott Slade als Young Gil Buckman |
 | Clint Howard als Lou |
| Lamont Lofton als Fotomat Clerk |
| Erika Rafuls als Amy |
| Jordan Kessler als Matt |
| Billy Cohen als Eddie |
 | Isabel Cooley als Barbara Rice |
| Walter von Huene als Opposing Coach |
| Brian Grazer | Producer |
| Ruth Morley | Costume Design |
| Donald McAlpine | Director of Photography |
| Janet Hirshenson | Casting |
| Jane Jenkins | Casting |
| Anthony J. Ciccolini III | Supervising Sound Editor |
| Ron Howard | Director |
| Ron Howard | Story |
| Todd Hallowell | Production Design |
| Daniel P. Hanley | Editor |
| Mike Hill | Editor |
| Randy Newman | Original Music Composer |
| Randy Newman | Songs |
| Fern Buchner | Makeup Artist |
| Romaine Greene | Hairstylist |
| Christopher Nowak | Art Direction |
| Tom Priestley Jr. | Camera Operator |
| Lowell Ganz | Screenplay |
| Lowell Ganz | Story |
| Babaloo Mandel | Screenplay |
| Babaloo Mandel | Story |
| Joseph M. Caracciolo | Executive Producer |
| Joseph M. Caracciolo | Unit Production Manager |
| Phillip V. Caruso | Still Photographer |
| Frank Griffin | Makeup Artist |
| Linda Trainoff | Hairstylist |
| Bob Hagans | Color Timer |
| Artie Malesci | Stunt Coordinator |
| Gary Muller | First Assistant Camera |
| Nina Ramsey | Set Decoration |
| Dan Carlin Sr. | Music Editor |
| Tony Adler | Second Assistant Director |
| Joe Napolitano | First Assistant Director |
| Rick Dior | Sound Re-Recording Mixer |
| Andrew Lipschultz | Unit Publicist |
| Beth Kuhn | Assistant Art Director |
| William A. Cimino | Set Dresser |
| Donna Battersby Greene | Hairstylist |
| Robert Ulland | Steadicam Operator |
| Cynthia Streit | Script Supervisor |
| Glen Gauthier | Boom Operator |
| Dale Caldwell | Color Timer |
| Michael Jacobi | Supervising ADR Editor |
| Nicklas Farrantello | Set Dresser |
| Peggy Coleman | Location Manager |
| Richard S. Church | Sound Mixer |
| Peter Wrona Jr. | Makeup Artist |
| Mollie S. Mallinger | Camera Trainee |
| Ray Sabo | Negative Cutter |
| Linda Marais | Set Dresser |
