Anthony Perkins as Josef K.

Jeanne Moreau as Marika Burstner

Romy Schneider as Leni

Orson Welles as Albert Hastler

Akim Tamiroff as Bloch

Elsa Martinelli as Hilda

Suzanne Flon as Miss Pittl

Madeleine Robinson as Mrs. Grubach

Max Haufler as Uncle Max

Max Buchsbaum as Examining Magistrate

Arnoldo Foà as Inspector A

Jess Hahn as Assistant Inspector #2

Billy Kearns as Assistant Inspector #1

Maurice Teynac as Deputy Manager

Naydra Shore as Irmie

Raoul Delfosse as Policeman

Jean-Claude Rémoleux as Policeman

Carl Studer as Man In Leather

Fernand Ledoux as Chief Clerk of the Law Court

Thomas Holtzmann as Bert the Law Student

Wolfgang Reichmann as Courtroom Guard

William Chappell as Titorelli

Michael Lonsdale as Priest

Peter Sallis as Uncle Max (uncredited)