Murder by Natural Causes (1979) Credits - Full Cast and Crew

as Arthur Sinclair

as Allison Sinclair

as George Brubaker

as Gil Weston

as Marty Chambers

as Eddie, Private Detective

as Helen Carrington

as Mrs. Mathews

as Garden Party Hostess

as Director

as Television Actress

as Technician

as Production Assistant

as Maid

as Woman in Play

as Marta

as Party Guest