Jack Nicholson (Randle Patrick McMurphy)
Louise Fletcher (Nurse Mildred Ratched)
William Redfield (Harding)
Dean R. Brooks (Dr. John Spivey)
Scatman Crothers (Turkle Crothers)
Phil Roth (Woolsey)
Ted Markland (Hap Arlich)
Dwight Marfield (Ellsworth)
Sidney Lassick (Charlie Cheswick)
Michael Berryman (Ellis)
Lan Fendors (Nurse Itsu)
Peter Brocco (Col. Matterson)
Josip Elic (Bancini)
Alonzo Brown, Jr. (Miller)
Mwako Cumbuka (Warren)
Will Sampson (Chief Bromden)
Vincent Schiavelli (Frederickson)
Delos V. Smith (Scanlon)
Marya Small (Candy)
Louisa Moritz (Rose)
Mimi Sarkisian (Nurse Pilbow)
Nathan George (Attandant Washington)
Danny DeVito (Martini)
William Duell (Sefelt)
Brad Dourif (Billy Bibbit)
Christopher Lloyd (Taber)