| Person | Type | Job | Role(s) |
|---|---|---|---|
 Billy May | Crew | Sound | Conductor |
 Charlie Picerni | Crew | Crew | Stunt Double |
Frank T. Smith | Crew | Art | Art Direction |
John McPartland | Crew | Writing | Novel |
Joseph Landon | Crew | Writing | Writer, Screenplay |
Marie Walter | Crew | Costume & Make-Up | Hairstylist |
Otto Ludwig | Crew | Editing | Editor |
 Peter Lawford | Crew | Production | Executive Producer |
Sam Leavitt | Crew | Camera | Director of Photography |
 William Asher | Crew | Directing | Director, Producer |
Budd Friend | Crew | Art | Set Decoration |
Frank La Rue | Crew | Costume & Make-Up | Makeup Artist |
Bob Russell | Crew | Crew | Transportation Captain |
Milton Ebbins | Crew | Production | Associate Producer |
Alex Bookston | Cast | Actor | |
 Art Gilmore | Cast | Actor | |
Bill Catching | Cast | Actor | |
 Bill Hickman | Cast | Actor | |
 Brad Dexter | Cast | Actor | Lennart Crandall |
Bruno Della Santina | Cast | Actor | |
Chris Willow Bird | Cast | Actor | |
 Clegg Hoyt | Cast | Actor | |
 Cosmo Sardo | Cast | Actor | |
 Douglas Henderson | Cast | Actor | |
 Douglass Dumbrille | Cast | Actor | |
Edward Innes | Cast | ||
 Elisha Cook Jr. | Cast | Actor | Underworld Leader |
 Elizabeth Montgomery | Cast | Actress | Darien 'Dare' Guiness |
Elizabeth Perry | Cast | Actress | |
 Elvia Allman | Cast | Actress | Beauty Salon Receptionist |
 Frank Albertson | Cast | Actor | Bill Blakely |
 Frank Wilcox | Cast | Actor | |
 George Cisar | Cast | Actor | George, a Bartender |
 George Eldredge | Cast | Actor | |
 George Holmes | Cast | Actor | |
 George N. Neise | Cast | Actor | |
 Gregory Morton | Cast | Actor | Jerry March |
 Guy Way | Cast | Actor | |
 Hal Baylor | Cast | Actor | |
 Hank Henry | Cast | Actor | Larry, Bus Driver |
 Henry Silva | Cast | Actor | Johnny Cool / Salvatore Giordano |
James W. Gavin | Cast | Actor | |
 Jim Backus | Cast | Actor | Louis Murphy |
Jimmy Cross | Cast | Actor | |
 Joan Staley | Cast | Actress | Suzy Blakely |
 Joe Turkel | Cast | Actor | Hoodlum |
 Joey Bishop | Cast | Actor | Holmes, Used Car Salesman |
 John Dierkes | Cast | Actor | Cripple |
 John McGiver | Cast | Actor | Oscar B. 'Oby' Hinds |
 Joseph Calleia | Cast | Actor | |
 Katharine Bard | Cast | Actress | Mrs. Crandall |
 Kelly Thordsen | Cast | Actor | |
 Marc Lawrence | Cast | Actor | Johnny Colini |
 Mario Siletti | Cast | Actor | |
 Mary Scott | Cast | Actress | |
Michael Davis | Cast | Actor | |
Peter Miller | Cast | Actor | |
Ralph Montgomery | Cast | Actor | |
 Richard Anderson | Cast | Actor | Correspondent |
 Robert Armstrong | Cast | Actor | Underworld Leader |
 Sammy Davis Jr. | Cast | Actor | Educated |
Steve Peck | Cast | Kromlein | |
 Telly Savalas | Cast | Actor | Vincenzo 'Vince' Santangelo |
 Victoria Vetri | Cast | Actress | |
 Wanda Hendrix | Cast | Actress | Miss Connolly |
Ray Kellogg | Cast | Actor | |
 Mort Sahl | Cast | Actor | Ben Morrow |
Sammy Shack | Cast | ||
 Sol Murgi | Cast | ||
Matty Jordan | Cast | Actor | |
Nick Borgani | Cast | ||
Margie Liszt | Cast | Actress | |
Joseph La Cava | Cast | Actor | |
Pete Kooy | Cast | ||
Boyd Cabeen | Cast | Actor | |
Tony Dante | Cast | ||
Ken DuMain | Cast | ||
Eddie Rosson | Cast | Actor | |
Theresa Testa | Cast | ||
| Person | Type | Job | Role(s) |
