Harry Evers
Gene Wilder
Marvin Ellison
Bob Newhart
Bob
Richard Schaal
Dave
Robert Sampson
John
Richard Gautier
David Evers (as Gerald Michenaud)
Jean-Michel Michenaud
Mr. Wood
John Archer
Waiter
Jonathan Kidd
Secretary
Barbara Barnett
Dick
Jed Allan
Cabbie
William Callaway
Camp Director
Sidney Clute
Lynne Evers
Ellen Burstyn
Counselor
Chris Sarandon
Announcer
Charles Shull
Contestant
Carol Worthington
Bartender
Ric Mancini
Camp Counselor
Loyd Catlett
New Yorker
Ben Lautman
Lois Ellison
Cloris Leachman
Mrs. Reynolds
Martha Scott
Mrs. Bender
Nancy Walker
Ann Menzente
Valerie Harper
Joel Forrest
Rob Reiner
Melvin Leonard
Norman Fell
Mike
Gino Conforti
Original Music Composer
Billy Goldenberg
Director
Robert Moore
Writer
James L. Brooks
Producer
Director of Photography
Joseph F. Biroc
Editor
Diane Adler
Fredric Steinkamp
Art Direction
Trevor Williams