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Paul Burke as Jerry Marshall |
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Carol Lynley as Diana |
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Martha Hyer as Lee Marshall |
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Peter Lind Hayes as Pete Delaney |
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Philip Carey as Mike Wilson |
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Stephen McNally as Lt. Tom Gavin |
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Whit Bissell as Dr. David Haggis |
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Ann Doran as Lee's Mother |
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Kathryn Givney as Margaret Granger, Diana's Aunt |
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Orville Sherman as Raymond |
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Leoda Richards as Patron in Country Club Bar |
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Elaine Devry as Sharon Livingston |
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Charles Alvin Bell as Swanton |
| Writing | Patricia Highsmith | Novel |
| Writing | Frank Tarloff | Writer |
| Writing | Norman Katkov | Writer |
| Directing | Robert Sparr | Director |
| Crew | Stephanie Epper | Stunts |
| Camera | Jacques R. Marquette | Director of Photography |
