| Person | Type | Job | Role(s) |
|---|---|---|---|
 Anna Hill Johnstone | Crew | Costume & Make-Up | Costume Design |
 Conrad L. Hall | Crew | Camera | Director of Photography |
 Eleanor Perry | Crew | Writing | Screenplay |
Frank L. Thompson | Crew | Costume & Make-Up | Costume Design |
 Frank Perry | Crew | Directing | Director, Producer |
Gene Callahan | Crew | Art | Production Design |
Harry Sundby | Crew | Camera | Director of Photography |
Henry Spitz | Crew | Production | Production Manager |
Irving Buchman | Crew | Costume & Make-Up | Makeup Artist |
 Jordan Cronenweth | Crew | Camera | Director of Photography |
Joseph C. Brun | Crew | Camera | Director of Photography |
Leif Pederen | Crew | Art | Set Decoration |
Pat Jaffe | Crew | Editing | Editor |
Peter Dohanos | Crew | Art | Production Design |
Peter Garbarini | Crew | Camera | Camera Operator |
Ralph Rosenblum | Crew | Editing | Editor |
 Truman Capote | Crew | Writing | Story |
Vincent Saizis | Crew | Camera | Camera Operator |
Sheila Bakerman | Crew | Editing | Editor |
Dan Eriksen | Crew | Directing | Assistant Director |
Christine Marler | Cast | Aunts | |
Donnie Melvin | Cast | Buddy | |
 Geraldine Page | Cast | Actress | Woman |
 Josip Elic | Cast | Actor | HaHa |
Lavinia Cassels | Cast | Aunts | |
 Martin Balsam | Cast | Actor | Ivor Belli |
 Maureen Stapleton | Cast | Actress | Mary O'Meaghan |
 Mildred Natwick | Cast | Actress | Miss Miller |
 Richard Hamilton | Cast | Actor | Man in Automat |
Tony Ross | Cast | Dwarf | |
Truman Capote | Cast | Actor | Narrator (voice) |
Frederic Morton | Cast | Man in Theatre | |
 Jane Connell | Cast | Actress | Mrs. Connolly |
 Beverly Ballard | Cast | Actress | Nina |
Carol Gustafson | Cast | Actress | Ms. Lake |
Susan Dunfee | Cast | Miriam | |
Brooks Rogers | Cast | Actor | Connolly |
Robin Ponterio | Cast | Emily | |
Lynn Forman | Cast | Woman in Car | |
Win Forman | Cast | Storekeeper | |
| Person | Type | Job | Role(s) |
