| Person | Type | Job | Role(s) |
|---|---|---|---|
 Frank Tarloff | Crew | Writing | Book, Screenplay |
 Gene Kelly | Crew | Directing | Director |
 John Williams | Crew | Sound | Original Music Composer |
 Joseph MacDonald | Crew | Camera | Director of Photography |
 Aline Towne | Cast | Actress | Mousey Man's Wife |
 Ann Morgan Guilbert | Cast | Actress | Technical Adviser (Charlie's Wife) |
 Art Carney | Cast | Actor | Technical Adviser (Joe X) |
 Ben Blue | Cast | Actor | Technical Adviser (Shoeless) |
 Carl Reiner | Cast | Actor | Technical Adviser (Rance G.) |
 Claire Kelly | Cast | Actress | Harriet Stander |
 Damian London | Cast | Actor | Lone Male Diner at Romanoff's |
Dee Carroll | Cast | Actress | Party Guest |
 Delores Wells | Cast | Actress | Very Attractive Woman (uncredited) |
 Elaine Devry | Cast | Actress | Jocelyn Montgomery |
 Eve Brent | Cast | Actress | Joe X's Blowsy Blonde |
Fred Holliday | Cast | Actor | Party Guest |
 George N. Neise | Cast | Actor | Man in Bed at Motel |
 Hal March | Cast | Actor | Technical Adviser (Man who loses coat) |
 Heather Young | Cast | Actress | Girl with Megaphone |
 Inger Stevens | Cast | Actress | Ruth Manning |
 Jack Benny | Cast | Actor | Technical Adviser (Ollie 'Sweet Lips') |
 Jackie Joseph | Cast | Actress | Janet Brophy |
 Jackie Russell | Cast | Actress | Jackie Russell |
 Jason Wingreen | Cast | Actor | Harry 'Big Fella' Johnson |
 Jayne Mansfield | Cast | Actress | Technical Adviser (Girl with Harold) |
 Jeffrey Hunter | Cast | Actor | Technical Adviser (Mountain Climber) |
Jimmy Cross | Cast | Actor | Mr. Brown |
 Joey Bishop | Cast | Actor | Technical Adviser (Charlie) |
 Joy Harmon | Cast | Actress | Party Girl in Bar (uncredited) |
 Karen Arthur | Cast | Actress | Lady Dinner Partner at Romanoff's |
 Linda Harrison | Cast | Actress | Miss Stardust |
 Louis Nye | Cast | Actor | Technical Adviser (Irving, House Buyer) |
 Lucille Ball | Cast | Actress | Technical Adviser (Mrs. Joe X) |
 Majel Barrett | Cast | Actress | Mrs. Fred V. |
Marian Mason | Cast | Mrs. Rance G. | |
 Marty Ingels | Cast | Actor | Technical Adviser (Meat Eater) |
Michael Romanoff | Cast | Actor | Romanoff's Maitre D' |
 Nancy DeCarl | Cast | Actress | Woman with Baby |
Pat Becker | Cast | Party Guest | |
Pat McCaffrie | Cast | Actor | Happy Hour Motel Clerk |
 Phil Silvers | Cast | Actor | Technical Advisor (Realtor) |
 Polly Bergen | Cast | Actress | Technical Adviser (Clara Brown) |
 Ray Montgomery | Cast | Actor | Party Guest |
 Robert Morse | Cast | Actor | Ed Stander |
 Robert Patten | Cast | Actor | Party Guest |
 Sam Jaffe | Cast | Actor | Technical Adviser (Shrink) |
 Sanita Pelkey | Cast | Actress | Girl in Introduction (uncredited) |
 Sid Caesar | Cast | Actor | Technical Adviser (at Romanoff's) |
 Sue Ane Langdon | Cast | Actress | Irma Johnson |
 Terry-Thomas | Cast | Actor | Technical Adviser (Harold aka Tiger) |
 Tim Herbert | Cast | Actor | Shoe Clerk |
 Tommy Farrell | Cast | Actor | Rance G.'s Hanger On |
 Virginia Wood | Cast | Actress | Bubbles |
 Wally Cox | Cast | Actor | Technical Adviser (Married 14 years) |
 Walter Matthau | Cast | Actor | Paul Manning |
Warrene Ott | Cast | Actress | Woman with Gun |
 Chanin Hale | Cast | Miss Crenshaw | |
Patricia Sides | Cast | Mau Mau Dancer at Bantu Cusine | |
Julie Tate | Cast | Woman in Bed at Motel | |
Evelyn King | Cast | Female Plaintiff | |
Marvin Brody | Cast | Taxi Driver | |
| Person | Type | Job | Role(s) |
