Gig Young as Eric Nicholson

Anne Baxter as Carlotta Mauridge

Patrick O'Neal as Jeremy Siddack

Dana Wynter as Julie Klanton

Leslie Nielsen as Dr. Neesden

Melvyn Douglas as Dr. Lawrence Strelson

William Redfield as Richard Lyle

Bettye Ackerman as Sara Nicholson

Louis Gossett Jr. as Lt. Adam McKay

Stacy Harris as Phillip Rootes

Thomas Bellin as Det. Cort

Greg Mullavey as Man in Funeral Parlor

David Fresco as David

Connie Hunter as Waitress

Syl Lamont as Cab Driver