Cliff Robertson as Michael Courtland

Geneviève Bujold as Elizabeth Courtland / Sandra Portinari

John Lithgow as Robert Lasalle

Sylvia Kuumba Williams as Maid

Wanda Blackman as Amy Courtland

J. Patrick McNamara as Third Kidnapper

Stanley J. Reyes as Inspector Brie

Nick Kreiger as Farber

Stocker Fontelieu as Dr. Ellman

Don Hood as Ferguson

Andrea Esterhazy as D'Annunzio

Thomas Carr as Paperboy

Tom Felleghy as Italian Businessman

Nella Simoncini Barbieri as Mrs. Portinari

John Creamer as Justice of the Peace

Regis Cordic as Newscaster

Loraine Despres as Jane

Clyde Ventura as Ticket Agent

Fain M. Cogrove as Secretary

Robert Harper as Man in Airport (uncredited)