Gregory Ratoff Marcos Director, Actor, Producer Edward G. Robinson George Constantin Actor Peggy Cummins Georgette Constanin Actor Richard Greene Larry Actor Nora Swinburne Ava Constantin Actor Walter Rilla Andreas Actor Finlay Currie Sir Thomas McTavish Actor James Robertson Justice Professor Keval Actor Ronald Adam Col. Fogarty Actor David Hutcheson Annix Actor Robert Thoeren Screenwriter William Rose Screenwriter