The Devil: Otto Landahl
Pregnant woman: Marianne Nielsen
Young man: Bertil Sjödin
Professor Reason/Mr. Rasmussen: Ulf Johanson
Mrs. Rasmussen: Dagny Lind
Consul General/Professor Trimbley: Karl-Axel Forssberg
Upper class family girl: Siv Thulin
The Monkey: Curt Edgard
Conscience: Ingrid Luterkort
Don Juan/Doctor Death: Åke Fridell
Bluebeard: Birger Malmsten
Virgin Mary: Carin Cederström
Dr. Paprika: Sture Ericson
The Man in a Straw Hat: Gunnar Nielsen

Playwright: Carl Erik Soya (play Hvem er Jeg?)
Director: Ingmar Bergman
Stage Design: Gunnar Lindblad
Music: Karl-Henrik Edström
Choreographer: Ellen Lundström