Ken Snell

Barfly

Willie Whitelaw

Churchill

C.S. Lewis

The Duke

Foscari

Lord Woodmouse / Crabby Blackjacket (Voice)

Police Chief Charles Lazar

David Scott-Fowler

Duke D'Antan

Inspector Andre

George Berenson

Dr. Max Hargrove

The Marquess of Quex

Tom Lewis

Gerald

Valentine

Dr. Dyson

Lewis Duncan/Zippy Grimes

Mike

Mackintosh

Mr. Vladimir

Jules Bernard

Mike

Nicholas Lindsay

Tom Jenkins

Tony Alexander

German Officer at Airfield (uncredited)

Max Stein

The Duke

P.R.O. / Window Dresser

Vice-Admiral Sir Thomas Hardy

Concierge

Restaurant Customer (uncredited)

Curtis

Young Man

Jock

Tom Briggs

Alec

Soldier in Canteen (Uncredited)

Private Donald Conyers

Sgt. Jones

Shop Assistant

Tomson