Hugh Lockwood

Hugh O'Brian

Heideline 'Uli' Ullman

Elke Sommer

V.C.R. Cameron

Burgess Meredith

Harold L. Streeter (as Sir John Gielgud)

John Gielgud

Frieda Ullman

Lilia Skala

Cheyne

Alfred Ryder

Gloria Harding

Angel Tompkins

Jaclyn Smith

Dr. Edward Laurent

Kent Smith

Carlos Lobos (as A. Martinez)

A Martinez

Kurt van Niestat

Ben Wright

Felix Ernst

Robert Boon

Dr. Griffin

Albert Popwell

Kuroda

Byron Chung

Miss Keach

Ginny Golden

Reinhardt Brugge

Jules Maitland

Hotel Clerk (uncredited)

David Ahdar

Guard (uncredited)

John Daheim

Lockwood's Girl (uncredited)

Jan Daley

Stewardess (uncredited)

Joanna Frank

Waiter (uncredited)

Dale Johnson

Hotel Guest (uncredited)

Joe Pine

Hotel Guest (uncredited)

Murray Pollack

Aaron Johannes (uncredited)

Ford Rainey

Waiter (uncredited)

Tony Regan

Hotel Guest (uncredited)

Jeffrey Sayre

Hotel Guest (uncredited)

Judith Woodbury