| Richard Brooke | Harry (uncredited) |
| John Candy | Paule (uncredited) |
| Sheridan Ciss | Student Roomer (uncredited) |
| David Daniels | Paulie (uncredited) |
| William J. Daprato | Hot Dog Vendor (uncredited) |
| John Delo | Shelly (uncredited) |
| Paul Easton | Fraternity Senior (uncredited) |
| Ralph Endersby | Fraternity Senior (uncredited) |
| Tony Fletcher | Fraternity Senior (uncredited) |
| James Forrest | Football Coach (uncredited) |
| Susan Friedman | Hermie's Sister (uncredited) |
| Nancy Belle Fuller | Cigar Smoking Student (uncredited) |
| Philip Galbraith | Boy at Mrs. Gilhuly's (uncredited) |
| Marty Galin | Second Brain (uncredited) |
| Robert Goodier | Ancient Professor (uncredited) |
| Barbara Graham | Friend of Hermie's Family (uncredited) |
| Lise Granik | Girl at Fraternity Party (uncredited) |
| Shelby Gregory | Soldier (uncredited) |
| David Gustafson | Professor Otis (uncredited) |
| Jim Henshaw | Fraternity Senior (uncredited) |
| Rick Hodgdon | Senior (uncredited) |
| Clarence Hood | Tom (uncredited) |
| Robert C. Imeson | Fraternity Senior (uncredited) |
| Stan Kane | Football Coach (uncredited) |
| Sean Kennedy | Senior (uncredited) |
| John Kerr | Ford Hotel Bartender (uncredited) |
| Julia King | Girl at Party (uncredited) |
| Christopher Kirby | Senior (uncredited) |
| Tony LaManna | Senior (uncredited) |
| Peter Langley | Football Coach (uncredited) |
| Emma Levine | Old Lady on Train (uncredited) |
| Evann Lewis | Dave (uncredited) |
| Randy Maertz | Boy (uncredited) |
| Gino Marrocco | Bartender (uncredited) |
| Gordon McIntyre | Football Coach (uncredited) |
| Ed McNamara | Train Conductor (uncredited) |
| Alan McRae | Fraternity Senior (uncredited) |
| George Millenbach | First Brain (uncredited) |
| Randy Milligan | Boy at Mrs. Gilhuly's (uncredited) |
| Victoria Montgomery | Fighting Prostitute (uncredited) |
| Ashley Moorhouse | Boy (uncredited) |
| George Murray | Singer (uncredited) |
| Margaret Nolan | Girl in Stairwell (uncredited) |
| Paul O'Brien | (uncredited) |
| John Overton | Dick (uncredited) |
| Laurie Pierce | Silly Girl (uncredited) |
| Shimmy Plener | Wally (uncredited) |
| Julie Rank | Waitress (uncredited) |
| Guy Sanvido | Candy Vendor (uncredited) |
| Brian Sinclair | Boy in Telephone Booth (uncredited) |
| David Smith | Boy at Mrs. Gilhuly's (uncredited) |
| Doug Springthorpe | Scroggins (uncredited) |
| Grant Tadman | Football Coach (uncredited) |
| Tom Toszegi | Marine on Train (uncredited) |
| Cam Trott | Student Roomer at Mrs. Gilhuly's (uncredited) |
| David Tyrell | The Fool (uncredited) |
| Jeanne Walker | Receptionist in Newspaper Office (uncredited) |
| Terrett West | Football Hero (uncredited) |
| Peter Whitall | Uncle Nat (uncredited) |
