John Dortmunder
Robert Redford
Andrew Kelp
George Segal
Abe Greenberg
Zero Mostel
Rollo the Bartender
Harry Bellaver
Happy Hippie
Seth Allen
Cop At Police Station
Robert Levine
Museum Guard
Gilbert Lewis
Policeman
Ed Bernard
Stanley Murch
Ron Leibman
Alan Greenburg
Paul Sand
Dr. Amusa
Moses Gunn
Lt. Hoover
William Redfield
"Sis" Clara Kelp
Topo Swope
Ma Murch
Charlotte Rae
Frank, the Prison Warden
Graham Jarvis
Christopher Guest
Stunt Coordinator
Carey Loftin
Director
Peter Yates
Novel
Donald E. Westlake
Screenplay
William Goldman
Original Music Composer
Quincy Jones
Casting
Alixe Gordin
Production Design
John Robert Lloyd
Set Decoration
Robert Drumheller
Sound
Theodore Soderberg
Production Supervisor
David Golden
Assistant Director
Ted Zachary
Special Effects
Ira Anderson Jr.
Unit Production Manager
Saul Wurtzel
James Sabat
Second Unit Director
Nicholas Sgarro
Makeup Artist
Irving Buchman
Producer
Bobby Roberts
Hal Landers
Director of Photography
Edward R. Brown
Editor
Fred W. Berger
Frank P. Keller
Costume Design
Ruth Morley