Julie Andrews as Gertrude Lawrence

Richard Crenna as Richard Aldrich

Michael Craig as Sir Anthony Spencer

Daniel Massey as Noël Coward

Robert Reed as Charles Fraser

Bruce Forsyth as Arthur Lawrence

Beryl Reid as Rose

John Collin as Jack Roper

Alan Oppenheimer as Andre Charlot

Richard Karlan as David Holtzmann

Lynley Laurence as Billie Carleton

Garrett Lewis as Jack Buchanan

Anthony Eisley as Ben Mitchell

Jock Livingston as Alexander Woollcott

J. Pat O'Malley as Dan

Harvey Jason as Bert

Mathilda Calnan as Dorothy

Peter Church as Narrator (voice)

Ian Abercrombie as Man in Brixton Music Hall (uncredited)

Kenneth Adams as Reporter (uncredited)

Jenny Agutter as Pamela Roper (uncredited)

Kathy Allen as Fox Chorus Girl (uncredited)

Leon Alton as Party Guest (uncredited)

Don Ames as Party Guest (uncredited)

Lionel Ames as Roman Officer (uncredited)

Richard Angarola as Cesare (uncredited)

Roger Arroyo as Little Person (uncredited)

Peter Ashton as Harry (uncredited)

Harold Ayer as Man at Adelphi Theatre (uncredited)

Philip Bailey as Singing Soldier (uncredited)

Conrad Bain as Second Salesman at Cartier's (uncredited)

John Barclay as Elderly Tragedian (uncredited)

John Barrett as Speaker at Hyde Park (uncredited)

Linda Barrett as Bundles for Britain Woman (uncredited)

Cathleen Cordell as Vendeuse (uncredited)

James Beck as Drunken Sailor (uncredited)

Seymour Green as Divorce Judge (uncredited)

Geoffrey Steele as Englishman at Noel's Party (uncredited)

Michael Danvers-Walker as Lt. Martindale