Paul Henreid as Dr. Philip Ritter

Lizabeth Scott as Alice Brent / Lily Conover

André Morell as David

Mary Mackenzie as Lily Conover, before surgery

John Wood as Dr. John 'Jack' Wilson

Susan Stephen as Betty

Arnold Ridley as Dr. Russell

Diana Beaumont as May

Cyril Smith as Alf Bixby, Innkeeper

Terence O'Regan as Pete Snipe

Russell Napier as Det. Cutler

Ambrosine Phillpotts as Miss Patten - Fur Department Clerk

Everley Gregg as Lady Millicent Harringay

Alexis France as Mrs. Emmett

John Bull as Charles Emmett

Anna Turner as Maid