The protégé of a famous cat burglar reluctantly agrees to join forces with a lesser criminal in the daring heist of several famous jewels from a seemingly impenetrable vault.
George Hamilton
as Jeffrey Hill
Joseph Cotten
as Ace
Marie Laforêt
as Olga Vodkine (as Marie Laforet)
Maurice Evans
as Nicolai Vodkine
Wolfgang Preiss
as Wilhelm Von Schenk
Karl Lieffen
as Helmut
Alexander Hegarth
as Brügger
Charlie Hickman
as Lieutenant Gilder (as Chaz Hickman)
Eduard Linkers
as Geisling
Al Hoosmann
as Police Sergeant (as Al Hoosman)
Bob Cheslock
as Kauffmann
Carroll Baker
as Carroll Baker