 | Bing Crosby als Harry Turner |
 | Bob Hope als Chester Babcock |
 | Joan Collins als Diane |
 | Robert Morley als Leader of the 3rd Echelon |
 | Walter Gotell als Dr. Zorbb |
 | Felix Aylmer als Grand Lama |
 | Dorothy Lamour als Dorothy Lamour |
 | Roger Delgado als Jinnah |
 | Jacqueline Jones als Blonde at Airport |
 | Katya Douglas als 3rd Echelon Receptionist |
 | Mei Ling als Ming Toy |
 | Robert Ayres als American Official |
 | Alan Gifford als American Official |
 | Peter Sellers als Indian Neurologist (uncredited) |
 | David Niven als Lama who remembers Lady Chatterly's Lover (uncredited) |
 | Dean Martin als The 'Grape' on Plutomium (uncredited) |
 | Frank Sinatra als The 'Twig' on Plutomium (uncredited) |
 | Dave King als Mr. Ahso - Chinese Restaurant Owner (uncredited) |
 | Pat O’Brien als Chinese Restaurateur (uncredited) |
 | Peter Madden als Lama, Slim (uncredited) |
 | Bob Simmons als Astronaut (uncredited) |
 | Nosher Powell als Astronaut (uncredited) |
 | Tutte Lemkow als Hotel Servant (uncredited) |
 | Robin Hughes als American Official (uncredited) |
 | Harry Baird als Nubian at Lamasary (uncredited) |
| Roy Patrick als Leader's Man(uncredited) |
 | Victor Brooks als Leader's Man (uncredited) |
| John Dearth als Leader's Man (uncredited) |
 | Jerry Colonna als Man Looking For a Match (uncredited) |
 | Edwina Carroll als Girl (uncredited) |
| Sheree Winton als Girl (uncredited) |
 | Michel Mok als Undetermined Role (as Michele Mok) |
| Melvin Frank | Producer |
| Roger K. Furse | Production Design |
| Syd Cain | Art Direction |
| William Hutchinson | Art Direction |
| Melvin Frank | Writer |
| Maurice Fowler | Set Decoration |
| Alan Osbiston | Editor |
| Sally Nicholl | Casting |
| Norman Panama | Director |
| Norman Panama | Writer |
| John C. Smith | Editor |
| John Victor-Smith | Editor |
| Robert Farnon | Original Music Composer |
| Anthony Mendleson | Costume Design |
| Jack Hildyard | Director of Photography |
| Basil Mannin | Set Dresser |
| Michael Walter | Key Grip |
| Ray Thorne | Assistant Editor |
| Bill Kirby | Production Supervisor |
| Sammy Cahn | Songs |
| Jimmy Van Heusen | Songs |
| Angela Martelli | Continuity |
| Pamela Davies | Continuity |
| Gerry Fisher | Camera Operator |
| Bluey Hill | Assistant Director |
| Buster Ambler | Sound |
| Bob Jones | Sound |
| Chris Greenham | Sound Editor |
| Lee Doig | Music Editor |
| David Aylott | Makeup Artist |
| Joan White | Hairstylist |
| Wally Veevers | Special Effects |
| Ted Samuels | Special Effects |
| Maurice Binder | Main Title Designer |
