 |
Warren Beatty as Harley Rummel |
 |
Leslie Caron as Michele O'Brien |
 |
Robert Cummings as Dr. Philip Brock |
 |
Keenan Wynn as Angelo Carelli |
 |
Lionel Stander as Sam |
 |
Asa Maynor as Rusty |
 |
Cathleen Nesbitt as Mrs. Brock |
|
Michael Bradley as John Thomas |
 |
Warren Mitchell as Frank Focus / Panel Moderator |
 |
Sydney Tafler as Panel Participant |
 |
Michael Kane as Staff Doctor |
|
Riggs O'Hara as Glue Sniffer |
 |
Mavis Villiers as Rusty's Mother |
 |
Margaret Nolan as Mail-Order Film Girl |
 |
Viviane Ventura as Mail-Order Film Girl |
 |
George Moon as Neighbour |
|
Charlotte Holland as Neighbour |
 |
Ferdy Mayne as Vittorio Fettucini |
|
Libby Morris as Clinic Mother |
 |
Bessie Love as Pet Shop Customer |
 |
Jill Adams as Mrs. B.M. von Crispin |
 |
Donald Sutherland as Autograph Seeking Father (uncredited) |
 |
Jo Anne Worley as Autograph Seeking Mother (uncredited) |
 |
Anita Sharp-Bolster as Mrs. Egan (uncredited) |
|
Chuck Julian as Grocery Clerk (uncredited) |
|
Vera Goulet as Nurse (uncredited) |
 |
Michael Chaplin as Heathcliff – Beatnik (uncredited) |
|
Pauline Chamberlain as Woman in Audience (uncredited) |
| Production | John Wakefield | Unit Manager |
| Directing | Arthur Hiller | Director |
| Sound | Lyn Murray | Original Music Composer |
| Camera | Douglas Slocombe | Director of Photography |
| Editing | John Shirley | Editor |
| Production | Stanley Rubin | Producer |
| Camera | Chic Waterson | Camera Operator |
| Art | Maurice Binder | Title Designer |
| Sound | John Cox | Sound |
| Camera | Robin Vidgeon | Focus Puller |
| Writing | Arne Sultan | Original Story |
| Costume & Make-Up | Beatrice Dawson | Costume Design |
| Costume & Make-Up | Pat McDermott | Hairstylist |
| Costume & Make-Up | Jean Fairlie | Wardrobe Supervisor |
| Production | Ronnie Bear | Production Manager |
| Art | Wilfred Shingleton | Production Design |
| Costume & Make-Up | Charles E. Parker | Makeup Artist |
| Sound | George Stephenson | Sound |
| Costume & Make-Up | John Briggs | Wardrobe Supervisor |
| Costume & Make-Up | Bob Lawrance | Makeup Artist |
| Directing | Urnee Robinson | Second Unit Director |
| Crew | Lionel Blair | Choreographer |
| Writing | William Peter Blatty | Screenplay |
| Directing | Angela Allen | Script Supervisor |
| Writing | Marvin Worth | Original Story |
| Production | Maude Spector | Casting |
| Art | David Ffolkes | Set Decoration |
| Sound | Christopher Lancaster | Sound Editor |
| Camera | Bert Mason | Camera Operator |
| Directing | Ted Sturgis | Assistant Director |
