Heinz Rühmann
— Dr. Lancelot Dodd / Dr. Ivor Marmion
Maria Sebaldt
— Mrs. Parker
Robert Graf
— Toni
Anton Diffring
— Howard
Mario Adorf
— Buddy Herman
Ernst Fritz Fürbringer
— Sir Gerald Blythe
Erika von Thellmann
— Mrs. Davis
Horst Keitel
— Purdie
Harry Wüstenhagen
— Mr. Bland
Ah Yue Lou
— Al Miller
Rudolf Rhomberg
— Glenville