Anthony Zerbe
Toussaint
Val Avery
Pascal
Dustin Hoffman
Louis Dega
Richard Farnsworth
Manhunter (uncredited)
Fred Sadoff
Deputy Warden
Anne Byrne Hoffman
Mrs. Dega (uncredited)
George Coulouris
Dr. Chatal
Dalton Trumbo
Commandant (uncredited)
Woodrow Parfrey
Clusiot
Steve McQueen
Henri "Papillon" Charriere
Don Gordon
Julot
Vic Tayback
Sergeant
Victor Jory
Indian Chief
William Smithers
Warden Barrot
Gregory Sierra
Antonio
Robert Deman
Maturette
Bill Mumy
Lariot
Len Lesser
Guard
Barbara Morrison
Mother Superior
Jack Denbo
Classification Officer
Richard Angarola
Commandant
Mills Watson
Guard
Don Hanmer
Butterfly Trader
John Quade
Masked Breton
Liam Dunn
Old Trustee
Allen Jaffe
Turnkey
Ron Soble
Santini
E.J. André
Old Con
Ratna Assan
Zoraima