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Glenn Corbett as Karl Anderson |
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Patricia Breslin as Miriam Webster |
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Eugenie Leontovich as Helga Swenson |
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Alan Bunce as Dr. Jonas |
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Richard Rust as Jim Nesbitt |
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James Westerfield as Alfred S. Adrims |
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Gilbert Green as Lt. Miller |
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Joan Marshall as Emily |
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Hope Summers as Martha Adrims (Uncredited) |
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Harry 'Snub' Pollard as Eddie, Bellhop (Uncredited) |
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Wolfe Barzell as Olie (Uncredited) |
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Teri Foster Brooks as Mrs. Forest (Uncredited) |
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William Castle as Self, Prologue Host (Uncredited) |
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Ralph Moody as First Hotel Clerk (Uncredited) |
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Joseph Forte as Second Hotel Clerk (Uncredited) |
| Directing | William Castle | Director |
| Sound | Hugo Friedhofer | Original Music Composer |
| Production | William Castle | Producer |
| Editing | Edwin H. Bryant | Editor |
| Art | Cary Odell | Art Direction |
| Writing | Robb White | Writer |
| Production | Dona Holloway | Associate Producer |
| Camera | Burnett Guffey | Director of Photography |
| Art | Darrell Silvera | Set Decoration |
| Sound | Lambert E. Day | Sound |
| Sound | Charles J. Rice | Sound Supervisor |
| Directing | Al Shenberg | Assistant Director |
| Art | Wayne Fitzgerald | Title Designer |
| Camera | Arnold L. Rich | Assistant Camera |
| Sound | Hugo Friedhofer | Conductor |
| Costume & Make-Up | Ben Lane | Makeup Supervisor |
