 | Bill Murray als Tripper Harrison |
 | Harvey Atkin als Morty |
 | Russ Banham als Crockett |
 | Kristine DeBell als A.L. |
 | Todd Hoffman als Wheels |
 | Matt Craven als Hardware |
 | Kate Lynch als Roxanne |
| Sarah Torgov als Candace |
 | Keith Knight als Fink |
 | Chris Makepeace als Rudy |
| Jack Blum als Spaz |
 | Cindy Girling als Wendy |
| Margot Pinvidic als Jackie |
 | Norma Dell'Agnese als Brenda |
 | David Shore als Kid Eating Crackers |
| Elmars Sebrins als Spaz's Father |
| Keith O'Derek als Camper |
| Keith Nicol als Camper |
| Michael Code als Camper |
 | Brett Baxter Clark als Camp Mohawk Basketball Player |
| Doreen MacCormack als Woman wearing sunglasses |
| Larry Solway als Interviewer |
| Bill Kishonti als Jeffrey |
| Hadley Kay als Bradley |
| Patrick Hynes als Andrew |
| Allan Levson als Peter |
| Valerie Fersht als Liza |
| Alison Diver als Carla |
| Ruth Rennie als Jody |
| Heather Preece als Patti |
 | Jim McLarty als Horse |
| Vince Guerriero als Rhino |
| Ron Barry als Lance |
| Greg Swanson als Phil |
 | Michael Kirby als Eddy |
| Ivan Reitman | Director |
| Elmer Bernstein | Original Music Composer |
| Tatiana Mihailoff | Continuity |
| Janis Allen | Writer |
| Harold Ramis | Writer |
| Daniel Goldberg | Producer |
| Donald Wilder | Director of Photography |
| Debra Karen | Editor |
| David Orin Charles | Art Direction |
| Carol Davidson | Makeup Artist |
| Judith R. Gellman | Costume Design |
| Daniel Goldberg | Writer |
| Len Blum | Writer |
| John Dunning | Executive Producer |
| André Link | Executive Producer |
| Robert Baylis | Production Manager |
| Gordon Robinson | Assistant Director |
| David Shepherd | Second Assistant Director |
| Albert J. Dunk | Camera Operator |
| Michael Szucs | First Assistant Camera |
| Ernie Kestler | Second Assistant Camera |
| Richard Lightstone | Sound Mixer |
| Abe DiCesare | Boom Operator |
| Roger Dean | Gaffer |
| Terry Davenport | Best Boy Electric |
| Brian Woodroof | Genetator Operator |
| Gerry Deschenes | Property Master |
| Gary C. Bourgeois | Sound Recordist |
| Peter Thillaye | Sound Editor |
| Michaël Karen | Assistant Editor |
| Rit Wallis | Assistant Editor |
| Joshua Nefsky | Still Photographer |
| David Evans | Assistant Sound Editor |
| Michael Kohne | Key Grip |
| Andrew Mulkani | Key Grip |
| John Russ | Grip |
| Don Retzer | Transportation Captain |
| Larry S. Wells | Costume Assistant |
| Mary E. McLeod | Costume Assistant |
| Jack Blum | Casting |
| Linda Russell | Casting |
| Sally Dennison | Casting |
| Michael MacDonald | Third Assistant Director |
| Nick Sweetman | Production Coordinator |
| Lynda Haller | Production Coordinator |
| Robert Wertheimer | Production Assistant |
| John Blackwood | Production Assistant |
| Mary Guilfoyle | Production Secretary |
| Leo Gregory | Production Accountant |
| Else Blangsted | Music Editor |
| Peter Bernstein | Orchestrator |
| Kay Armatage | Location Coordinator |
