 | Audrey Hepburn als Holly Golightly |
 | George Peppard als Paul Varjak |
 | Patricia Neal als 2E Failenson |
 | Buddy Ebsen als Doc Golightly |
 | Martin Balsam als O.J. Berman |
 | José Luis de Vilallonga als José da Silva Pereira |
 | John McGiver als Tiffany's Salesman |
 | Dorothy Whitney als Mag Wildwood |
 | Stanley Adams als Rusty Trawler |
 | Elvia Allman als Librarian |
 | Alan Reed als Sally Tomato |
 | Beverly Powers als Nightclub Stripper |
 | Claude Stroud als Sid Arbuck |
 | Mickey Rooney als Mr. Yunioshi |
 | Don Anderson als Bartender (uncredited) |
| Al Avalon als Spieler at Stripjoint (uncredited) |
 | Janet Banzet als Woman (uncredited) |
 | Mel Blanc als Holly's Drunk Visitor (voice) (uncredited) |
| Joe Scott als Party Guest (uncredited) |
| Jim Michael als Strip Club Patron (uncredited) |
| Henry Barnard als Party Guest (uncredited) |
 | Henry Beckman als Narcotics Detective Cronberger (uncredited) |
| Arthur Berkeley als Inmate (uncredited) |
 | Nicky Blair als Party Guest (uncredited) |
| Willie Bloom als Inmate (uncredited) |
 | Bill Bradley als Reporter (uncredited) |
| Thayer Burton als Girl in Shower (uncredited) |
| Florine Carlan als Party Guest (uncredited) |
 | Sue Casey als Party Guest in Blue and Green Dress (uncredited) |
 | Roydon Clark als Party Guest (uncredited) |
 | Marian Collier als Party Guest (uncredited) |
| Christine Corbin als Sing Sing Prison Visitor (uncredited) |
| Dick Crockett als Cab Driver (uncredited) |
| Tom Curtis als Party Guest (uncredited) |
 | Tommy Farrell als Party Guest (uncredited) |
| James Field als Party Guest (uncredited) |
| George Fields als Harmonica Player (uncredited) |
| Joseph Glick als Inmate (uncredited) |
| Joe Gray als Party Guest (uncredited) |
| Joseph J. Greene als Mr. O'Shaunessy (uncredited) |
| Sam Harris als Jewelry Shop Clerk (uncredited) |
| Pete Kellett als Guard (uncredited) |
| Barbara Kelley als Party Guest (uncredited) |
| Kip King als Delivery Boy (uncredited) |
 | Frank Kreig als Party Guest (uncredited) |
 | Gil Lamb als Party Guest with Harriet (uncredited) |
 | Hanna Landy als Party Guest (uncredited) |
| James Lanphier als The Cousin (uncredited) |
| Mary LeBow als Party Guest (uncredited) |
| Paul Lees als Floorwalker (uncredited) |
| Leatrice Leigh als Telephone Operator (uncredited) |
| Mel Leonard als Cab Driver (uncredited) |
 | Leota Lorraine als Party Guest (uncredited) |
| Mike Mahoney als Police Desk Sergeant (uncredited) |
 | Frank Marth als Party Guest (uncredited) |
 | Fay McKenzie als Party Guest Laughing in Mirror (uncredited) |
| William Meader als Jewelry Shop Clerk (uncredited) |
 | Joyce Meadows als Party Guest Shaking Derrier in White Dress (uncredited) |
 | Harold Miller als Tiffanys Customer (uncredited) |
| Hollis Morrison als Party Guest (uncredited) |
 | Kate Murtagh als Policewoman (uncredited) |
| Bill Neff als Party Guest (uncredited) |
 | Miriam Nelson als Harriet - Party Guest in Gold Dress (uncredited) |
| Chuck Niles als Sing Sing Prison Guard (uncredited) |
| Peggy Patten als Party Guest (uncredited) |
 | Robert Patten als Party Guest (uncredited) |
| John Perri als Party Guest (uncredited) |
| Michael Quinlivan als Party Guest with Eyepatch (uncredited) |
| William Benegal Rau als Hindu at Party (uncredited) |
| Tony Regan als Party Guest (uncredited) |
 | Charles Sherlock als Reporter at Policed HQ (uncredited) |
| Annabella Soong als Chinese Party Guest (uncredited) |
 | Helen Spring als Party Guest with Hat on Fire (uncredited) |
 | Joan Staley als Blonde in Low-Cut Cream Dress (uncredited) |
 | Richard Wyler als Party Guest (uncredited) |
| Nino Tempo als Customer (uncredited) |
| Towyna Thomas als Party Guest (uncredited) |
| Danny Truppi als Inmate (uncredited) |
 | Glen Vernon als Reporter (uncredited) |
| Linda Wong als Party Guest (uncredited) |
| Wilson Wood als Party Guest with Cat on Shoulder (uncredited) |
 | Michael Zaslow als Party Guest (uncredited) |
 | Orangey als Cat |
| George Axelrod | Screenplay |
| Edith Head | Costume Supervisor |
| Richard Shepherd | Producer |
| Henry Mancini | Original Music Composer |
| Franz Planer | Director of Photography |
| Hubert de Givenchy | Costume Design |
| Martin Jurow | Producer |
| Blake Edwards | Director |
| Howard A. Smith | Editor |
| Farciot Edouart | Special Effects |
| Johnny Mercer | Songs |
| Nellie Manley | Hair Supervisor |
| Henry Mancini | Songs |
| William McGarry | Assistant Director |
| Wally Westmore | Makeup Supervisor |
| Truman Capote | Novel |
| Frank Inn | Animal Wrangler |
| Sam Comer | Set Decoration |
| Pauline Trigere | Costume Design |
| Richard Mueller | Other |
| Hal Pereira | Art Direction |
| Roland Anderson | Art Direction |
| John Wilkinson | Sound Recordist |
| John P. Fulton | Special Effects |
| Ray Moyer | Set Decoration |
| Hugo Grenzbach | Sound Recordist |
| Philip H. Lathrop | Additional Photography |
