McMurphy pretends to be mad to avoid a prison sentence but existence in the mental hospital is not what he imagined.
| Actor | Role |
|---|---|
 Örjan RambergRandle P. McMurphy | Randle P. McMurphy |
 Birgitte SöndergaardSyster Ratched | Syster Ratched |
| BBo SanderHövding Bromden | Hövding Bromden |
 Richard CarlsohnBilly Bibbit | Billy Bibbit |
 Rolf SkoglundDale Harding | Dale Harding |
 Peter HüttnerMartini | Martini |
 Roland JanssonScanlon | Scanlon |
| SSten Johan HedmanCheswick | Cheswick |
| PPeter LuckhausRuckly | Ruckly |
 Jan NygrenDoktor Spivey | Doktor Spivey |
 Ann-Sofie KylinSyster Flinn | Syster Flinn |
| RRune HallbergNattvakten | Nattvakten |
| MMonica EdwardssonCandy Starr | Candy Starr |
| PPierre DahlanderWarren | Warren |
 Ted ÅströmWilliams | Williams |
 Petra NielsenSandra | Sandra |
| HHarry BlomkvistPatient | Patient |
| BBertil FrickPatient | Patient |
| BBo HögbergPatient | Patient |
| NNicola LeprePatient | Patient |
| GGeorge PerrinPatient | Patient |
| IInger StrömSköterska | Sköterska |