Julie Andrews
Gertrude Lawrence

Richard Crenna
Richard Aldrich

Michael Craig
Sir Anthony Spencer

Daniel Massey
Noël Coward

Robert Reed
Charles Fraser

Bruce Forsyth
Arthur Lawrence

Beryl Reid
Rose

John Collin
Jack Roper

Alan Oppenheimer
Andre Charlot

Richard Karlan
David Holtzmann

Anthony Eisley
Ben Mitchell

J. Pat O'Malley
Dan

Harvey Jason
Bert

Mathilda Calnan
Dorothy

Ian Abercrombie
Man in Brixton Music Hall (uncredited)

Jenny Agutter
Pamela Roper (uncredited)

Lionel Ames
Roman Officer (uncredited)

Richard Angarola
Cesare (uncredited)

Philip Bailey
Singing Soldier (uncredited)

Conrad Bain
Second Salesman at Cartier's (uncredited)

John Barclay
Elderly Tragedian (uncredited)

John Barrett
Speaker at Hyde Park (uncredited)

Cathleen Cordell
Vendeuse (uncredited)

James Beck
Drunken Sailor (uncredited)