Steve McQueen as Henri "Papillon" Charriere

Dustin Hoffman as Louis Dega

Victor Jory as Indian Chief

Don Gordon as Julot

Anthony Zerbe as Toussaint

Robert Deman as Maturette

Woodrow Parfrey as Clusiot

Bill Mumy as Lariot

George Coulouris as Dr. Chatal

Ratna Assan as Zoraima

William Smithers as Warden Barrot

Val Avery as Pascal

Gregory Sierra as Antonio

Vic Tayback as Sergeant

Mills Watson as Guard

Ron Soble as Santini

Barbara Morrison as Mother Superior

Don Hanmer as Butterfly Trader

E.J. André as Old Con

Richard Angarola as Commandant

Jack Denbo as Classification Officer

Len Lesser as Guard

John Quade as Masked Breton

Fred Sadoff as Deputy Warden

Allen Jaffe as Turnkey

Liam Dunn as Old Trustee

Anne Byrne Hoffman as Mrs. Dega (uncredited)

Dalton Trumbo as Commandant (uncredited)

Richard Farnsworth as Manhunter (uncredited)

Peter Brocco as Doctor (uncredited)