Alias John Preston

Betta St. John

Sally Sandford

Alexander Knox

Dr. Peter Walton

Christopher Lee

John Preston

Sandra Dorne

Sylvia

Patrick Holt

Sylvia's Husband

John Stuart

Dr. Underwood

Bill Fraser

Joe Newton

Peter Grant

Bob Newton

Betty Ann Davies

Mrs. Sandford

John Longden

Richard Sandford

Gabrielle Gay

Seamstress

Guido Lorraine

Headwaiter

Dinah Anne Rogers

Phyllis

Paul Beradi

Hospital Board Member (uncredited)

Ernest Blyth

Hospital Board Member (uncredited)