| Jack Lemmon | George Kellerman |
| Sandy Dennis | Gwen Kellerman |
| Sandy Baron | Lenny Moyers |
| Anne Meara | Purse Snatching Victim in Police Station |
| Robert Nichols | Passenger |
| Ann Prentiss | Airline Stewardess #1 |
| Ron Carey | Barney Polacek, Cab Driver in Boston |
| Philip Bruns | Officer Meyers |
| Graham Jarvis | Murray the mugger |
| Carlos Montalbán | Manuel Vargas |
| Director | Arthur Hiller |
| Producer | Paul Nathan |
| Writer | Neil Simon |
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