Joseph Cotten as Whitney 'Cam' Cameron

Jean Peters as Lynn Cameron

Gary Merrill as Fred Sargent

Catherine McLeod as Maggie Sargent

Jack Kruschen as Detective Lieutenant Harold Y. Cole

Barney Phillips as Detective Captain Pringle

Freddy Ridgeway as Doug Cameron

Harry Carter as Wheeler (Uncredited)

James Gonzalez as Joe Cunningham (Uncredited)

Ed Hinton as Ed (Uncredited)

Jonathan Hole as Dr. Stevenson (Uncredited)

Mae Marsh as Anna Swenson (Uncredited)

Carleton Young as Frank Connelly (Uncredited)

Joyce McCluskey as Nurse Bobbie Brownell (Uncredited)

Grandon Rhodes as Probate Judge James J. Adams (Uncredited)

Walter Sande as District Attorney John J. Henderson (Uncredited)

Herb Butterfield as Judge at Preliminary Hearing (Uncredited)

Charles Collins as Pesticide Seller (Uncredited)

Oliver Cross as Club Member (Uncredited)

Bess Flowers as Maggie's Friend at Club (Uncredited)

Teddy Mangean as Attendant (Uncredited)

Tyler McVey as Police Lab Technician (Uncredited)

George Melford as Bailiff (Uncredited)

Harold Miller as Lynn's Lawyer (Uncredited)

Hans Moebus as Lawyer (Uncredited)

Eugene Borden as Headwaiter (Uncredited)

Raymond Gray as Waiter (Uncredited)

Arthur J. Flaven as Waiter (Uncredited)

Jack Deery as Restaurant Patron (Uncredited)

Kenneth Gibson as Restaurant Patron (Uncredited)

Don Kohler as Ship's Officer (Uncredited)

Thomas Martin as Ship's Cocktail Waiter (Uncredited)

Alex Ball as Ship's Passenger (Uncredited)

Herbert Lytton as Ship's Doctor (Uncredited)

Bert Stevens as Ship's Headwaiter (Uncredited)

Charles Tannen as Detective (Uncredited)

Bernard Sell as Detective (Uncredited)

Julian Upton as Detective (Uncredited)

Guy Kingsford as Detective (Uncredited)

Herbert Ellis as Detective (Uncredited)

Ray Hyke as Hospital Pharmacist (Uncredited)

Aline Towne as Hospital File Clerk (Uncredited)

Marjorie Stapp as Nurse (Uncredited)

Sally Yarnell as Nurse (Uncredited)

Pamela Duncan as Nurse (Uncredited)