| Actor | Role |
|---|---|
 Heinz RühmannDr. Lancelot Dodd / Dr. Ivor Marmion | Dr. Lancelot Dodd / Dr. Ivor Marmion |
 Maria SebaldtMrs. Parker | Mrs. Parker |
 Robert GrafToni | Toni |
 Anton DiffringHoward | Howard |
 Mario AdorfBuddy Herman | Buddy Herman |
 Ernst Fritz FürbringerSir Gerald Blythe | Sir Gerald Blythe |
 Erika von ThellmannMrs. Davis | Mrs. Davis |
| HHorst KeitelPurdie | Purdie |
 Harry WüstenhagenMr. Bland | Mr. Bland |
| AAh Yue LouAl Miller | Al Miller |
 Rudolf RhombergGlenville | Glenville |
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