Robert Redford
John Dortmunder
George Segal
Andrew Kelp
Ron Leibman
Stanley Murch
Paul Sand
Alan Greenburg
Moses Gunn
Dr. Amusa
William Redfield
Lt. Hoover
Topo Swope
"Sis" Clara Kelp
Charlotte Rae
Ma Murch
Graham Jarvis
Frank, the Prison Warden
Christopher Guest
Policeman
Zero Mostel
Abe Greenberg
Harry Bellaver
Rollo the Bartender
Seth Allen
Happy Hippie
Robert Levine
Cop At Police Station
Ed Bernard
Policeman
Lee Wallace
Dr. Strauss
Robert Weil
Albert
Lynne Gordon
Miasmo
Grania O'Malley
Bird Lady
Fred Cook
Otto
Mark Dawson
Big Museum Guard
Gilbert Lewis
Museum Guard #1
George Bartenieff
Museum Guard #2
Charles White
Policeman
Albert Henderson
Prison Property Clerk (uncredited)
Burt Richards
Police Officer (uncredited)
Arnold Williams
Prisoner (uncredited)
John Robert Lloyd
Production Design
Robert Drumheller
Set Decoration
Alixe Gordin
Casting
Peter Yates
Director
Donald E. Westlake
Novel
William Goldman
Screenplay
David Golden
Production Supervisor
Saul Wurtzel
Unit Production Manager
James Sabat
Sound
Theodore Soderberg
Sound
Irving Buchman
Makeup Artist
Ted Zachary
Assistant Director
Nicholas Sgarro
Second Unit Director
Ira Anderson Jr.
Special Effects
Carey Loftin
Stunt Coordinator
Hal Landers
Producer
Bobby Roberts
Producer
Quincy Jones
Original Music Composer
Edward R. Brown
Director of Photography
Fred W. Berger
Editor
Frank P. Keller
Editor
Ruth Morley
Costume Design
Alice H. Bell
Second Assistant Director
John Nicolella
Second Assistant Director
Allan Wertheim
Second Assistant Director
Morris Weinman
Set Dresser
Don Winclair
Sound Recordist
Tony Parmelee
Special Effects
Richard Falk
Gaffer
Peter Garbarini
Camera Operator
Ron Zarilla
Second Assistant Camera