Full credits

On screen, in billing order

1. 1Alex Scott
2. 2Caroline Munro
3. 3Charles Farrell
4. 4George Eastman
5. 5Hugh Griffith
6. 6John Laurie
7. 7Joseph Cotten
8. 8Paul Frees
9. 9Peter Gilmore
10. 10Peter Jeffrey
11. 11Terry-Thomas
12. 12Vincent Price
13. 13Virginia North

• James H. Nicholson
• Louis M. Heyward
• Samuel Z. Arkoff