Peter Sellers

Rudolf IV/Rudolf V/Sidney Frewin

Acting

Stuart Wilson

Rupert

Acting

Lynne Frederick

Princess Flavia

Acting

Elke Sommer

Countess Montparnasse

Acting

Gregory Sierra

Count Montparnasse

Acting

Catherine Schell

Mauban

Acting

Jeremy Kemp

Duke Michael

Acting

John Laurie

Archbishop

Acting

Ian Abercrombie

Johann

Acting

Simon Williams

Acting

Lionel Jeffries

Colonel Zapt

Acting

Michael Balfour

Acting

Graham Stark

Acting

Michael Segal

Acting

Arthur Howard

Acting

Norman Rossington

Acting

Brendan Dillon

Joseph (uncredited)

Acting