 | Audrey Hepburn als Eliza Doolittle |
 | Rex Harrison als Professor Henry Higgins |
 | Stanley Holloway als Alfred P. Doolittle |
 | Wilfrid Hyde-White als Colonel Hugh Pickering |
 | Gladys Cooper als Mrs. Higgins |
 | Jeremy Brett als Freddy Eynsford-Hill |
 | Theodore Bikel als Zoltan Karpathy |
 | Mona Washbourne als Mrs. Pearce |
 | Isobel Elsom als Mrs. Eynsford-Hill |
 | John Holland als Butler |
 | Colin Kenny als Ad Lib at Church (uncredited) |
 | Bert Stevens als Gentleman (uncredited) |
 | Frank Baker als Gentleman (uncredited) |
 | Marjorie Bennett als Cockney with Pipe (uncredited) |
 | Betty Blythe als Lady at Ball (uncredited) |
 | Arthur Tovey als Singer (uncredited) |
 | Marni Nixon als Eliza Doolittle (singing voice) (uncredited) |
 | Al Bain als Cockney (uncredited) |
 | William Beckley als Footman (uncredited) |
 | Lillian Kemble-Cooper als Lady Ambassador (uncredited) |
 | Henry Daniell als Ambassador (uncredited) |
 | Brendan Dillon als Leading Man (uncredited) |
| Iris Bristol als Flower Girl (uncredited) |
| Geoffrey Steele als Taxi Driver (uncredited) |
 | Charles Fredericks als King George V (uncredited) |
 | Maurice Dallimore als Selsey Man (uncredited) |
 | John Alderson als Jamie - Doolittle's crony (uncredited) |
 | John McLiam als Harry (uncredited) |
 | John Mitchum als Ad Lib at Church (uncredited) |
 | Alan Napier als Gentleman Escorting Eliza to the Queen (uncredited) |
 | Christopher Riordan als Suitor at Ball (uncredited) |
 | Michael St. Clair als Bartender (uncredited) |
 | Grady Sutton als Ascot Extra / Guest at Ball (uncredited) |
| George Bernard Shaw | Theatre Play |
| Jack L. Warner | Producer |
| Alan Jay Lerner | Musical |
| William H. Ziegler | Editor |
| James C. Katz | Producer |
| George Cukor | Director |
| Alan Jay Lerner | Screenplay |
| Frederick Loewe | Original Music Composer |
| Harry Stradling Sr. | Director of Photography |
| George James Hopkins | Production Design |
| Cecil Beaton | Production Design |
| Hermes Pan | Choreographer |
| David S. Hall | Assistant Director |
| Jean Burt Reilly | Hair Supervisor |
| Gordon Bau | Makeup Supervisor |
| Gene Allen | Art Direction |
| George James Hopkins | Set Decoration |
| Francis J. Scheid | Sound |
| André Previn | Conductor |
| Murray Spivack | Sound |
| Frederick Loewe | Musical |
| Cecil Beaton | Costume Design |
| Alexander Courage | Orchestrator |
| Bobby Tucker | Music Arranger |
| Robert Franklyn | Orchestrator |
| Alan Jay Lerner | Book |
| Albert Woodbury | Orchestrator |
| Alan Jay Lerner | Lyricist |
| Frederick Loewe | Additional Music |
| Sergei Petschnikoff | Unit Manager |
| André Previn | Music Supervisor |
| Frederick Loewe | Songs |
