Directing
| Miloš Forman | Director |
Writing
| Ken Kesey | Novel |
| Bo Goldman | Screenplay |
| Lawrence Hauben | Screenplay |
Production
| Michael Douglas | Producer |
| Saul Zaentz | Producer |
| Jane Feinberg | Casting |
| Mike Fenton | Casting |
Sound
| Jack Nitzsche | Original Music Composer |
| Pat Jackson | Sound Editor |
Camera
| Haskell Wexler | Director of Photography |
Editing
| Sheldon Kahn | Editor |
| Lynzee Klingman | Editor |
Crew
| Alan Gibbs | Stunts |
Cast
 |
Jack Nicholson | as Randle Patrick McMurphy |
 |
Louise Fletcher | as Nurse Mildred Ratched |
 |
William Redfield | as Harding |
 |
Michael Berryman | as Ellis |
|
Peter Brocco | as Colonel Matterson |
|
Dean R. Brooks | as Dr. John Spivey |
|
Alonzo Brown | as Miller |
 |
Scatman Crothers | as Orderly Turkle |
|
Mwako Cumbuka | as Attendant Warren |
 |
Danny DeVito | as Martini |
 |
William Duell | as Jim Sefelt |
|
Josip Elic | as Bancini |
|
Lan Fendors | as Nurse Itsu |
|
Nathan George | as Attendant Washington |
|
Ken Kenny | as Beans Garfield |
|
Mel Lambert | as Harbormaster |
|
Sydney Lassick | as Charlie Cheswick |
|
Kay Lee | as Night Nurse |
 |
Brad Dourif | as Billy Bibbit |
 |
Christopher Lloyd | as Taber |
|
Louisa Moritz | as Rose |
 |
Will Sampson | as Chief Bromden |
 |
Vincent Schiavelli | as Fredrickson |
 |
Anjelica Huston | as Woman on Pier |