Benvenuto a Scotland Yard!

Michael Redgrave

Percy Brand

Robert Morley

Judge Sir Edward Crichton

Lionel Jeffries

Major Proudfoot

Ronald Squire

Colonel Masters

Elizabeth Sellars

Gina Laselle

Joan Hickson

Aunt Florence

Jeremy Burnham

Colin Brand

Brenda Bruce

Mary Cooper

Brenda Bruce

Blacky

George Coulouris

'Bennie' Bensuson

George Coulouris

Sergeant Bolton

Reginald Beckwith

Vickery

David Hutcheson

Freddie Cooper

Mary Kerridge

Lady Crichton

Michael Trubshawe

Ivan