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