O.S.S. - Cast

Alan Ladd

John Martin / Lt. (j.g.) Philip Masson, U.S.N.R. / Philippe Martine
Actor

Geraldine Fitzgerald

Miss Ellen Rogers / Madame Elaine Duprez
Actor

Patric Knowles

Cmdr. Brady
Actor

John Hoyt

Col. Paul Meister
Actor

Gloria Saunders

(W)omen's (A)rmy (C)orps Radio Operator Mary
Actor

Richard Webb

Frank Schmidt (O)perational (S)upport (P)ackages, (M)aterial, Maintenance, Management, U.S.N.R. / Parker
Actor

Richard Benedict

Robert Bouchet, Tech Sgt., A.U.S. / Albert Bernardi
Actor

Harold Vermilyea

Amadeus Brink
Actor

Don Beddoe

Rodney "Gates" Parrish / Raoul Josse
Actor

Onslow Stevens

Field
Actor

Gavin Muir

Col. Crawson
Actor

Egon Brecher

Marcel Aubert
Actor

Joseph Crehan

Gen. Donovan
Actor

Bobby Driscoll

Gerard
Actor

Julia Dean

Madame Prideaux
Actor

Crane Whitley

Arnheim
Actor

Dorothy Adams

Claudette (uncredited)
Actor

John Dehner

German Radar Captain (uncredited)
Actor

Frank Ferguson

Electronics Engineer (uncredited)
Actor