Philip 'Phil' O'Dell
Heather McMara
Margaret 'Peggy' Maybrick
Christopher Hampden
Inspector Rigby
Det. Sgt. Reilly
Marilyn Durant
Martin Sorrowby
Boswell - Airport Manager
Sid - Bartender
Connors
Smithers
Danny McMara - Hit-and-Run Victim
Sales Manager
Donna Devore
Allan Mellon
Dr. Campbell - Asylum Superintendent
Miss Andrews - Asylum Receptionist
Mad Mary - Old Inmate at Murder Scene
Head Waiter
Delmont Switchboard Operator (as Jean Bayliss)
Steve
Desk Clerk at Heather's Apartment
John - Film Director
Minor Role (uncredited)
Airline Reservations Clerk (uncredited)
Nurse at Glenhaven Sanatorium (uncredited)
Police Sergeant (uncredited)
Girl at Film Studio (uncredited)
Hospital Attendant (uncredited)
