| Actor | Stuart Damon (as Craig Stirling), William Gaunt (as Richard Barrett), Anthony Nicholls (as Cmdr. W.L. Tremayne), Peter Wyngarde (as Hallam), James Culliford (as Sumner), Basil Dignam (as Sir Frederick), Aubrey Morris (as Van Velden), Steve Plytas (as Boursin), Reg Prince (as Truck Driver), David Prowse (as Weightlifter), John Tatum (as NY Bank Clerk) |
| Actress | Alexandra Bastedo (as Sharron Macready) |
Added by Mycdhitzone