The Silent One

Lino Ventura

Clément Tibère

Leo Genn

Chief of M.I.5

Suzanne Flon

Jeanne

Robert Hardy

Assistant

Lea Massari

Maria

Roger Crouzet

Agent of the D.S.T.

Lucienne Legrand

Bookseller

Bernard Dhéran

M.Chat

Pierre Collet

Mechanic

André Falcon

Police Commissioner

Richard Marner

Robert Party

Killer

Michel Fortin

Trucker

Pierre Forget

George Pravda

Pierre Zimmer

Maria's new husband

Jerry Brouer

Richard Saint-Bris

Max Fournel

Jeffry Wickham

Bill Pertwee

Police Driver (uncredited)