Tippi Hedren character Marnie Edgar/Margaret Edgar/Peggy Nicholson/Mary Taylor
Sean Connery character Mark Rutland
Diane Baker character Lil Mainwaring
Martin Gabel character Sidney Strutt
Louise Latham character Bernice Edgar
Alan Napier character Mr. Rutland
Bob Sweeney character Cousin Bob
Milton Selzer character Man at Track
Henry Beckman character First Detective
Edith Evanson character Rita
Mariette Hartley character Susan Clabon
Bruce Dern character Sailor
S. John Launer character Sam Ward
Meg Wyllie character Mrs. Turpin
Kimberly Beck character Jessie
Rupert Crosse character Office Worker
Melody Thomas Scott character Marnie (as a child)
Lillian Bronson character Mrs. Maitland
Kenner G. Kemp character Party Guest
Harold Gould character Mr. Garrett (uncredited)
Emmaline Henry character (uncredited)
Alfred Hitchcock character Man Leaving Hotel Room (uncredited)
