Elliott Gould Philip Marlowe Nina van Pallandt Eileen Wade Sterling Hayden Roger Wade Mark Rydell Marty Augustine Henry Gibson Dr. Verringer David Arkin Harry Jim Bouton Terry Lennox Warren Berlinger Morgan Arnold Schwarzenegger Hood in Augustine's Office (uncredited) Jack Knight Mabel Pancho Córdova Doktor Enrique Lucero Jeffe Rutanya Alda Rutanya Sweet Jack Riley Riley Ken Sansom Colony Guard Jerry Jones Detective Green Robert Altman Ambulance Driver (uncredited) David Carradine Dave aka Socrates (uncredited) Carl Gottlieb Wade Party Guest (uncredited) George Wyner Cop at Beach (uncredited) Leslie McRay Lucille (uncredited) Elliott Gould Philip Marlowe Nina van Pallandt Eileen Wade Sterling Hayden Roger Wade Mark Rydell Marty Augustine Henry Gibson Dr. Verringer David Arkin Harry Jim Bouton Terry Lennox Warren Berlinger Morgan Arnold Schwarzenegger Hood in Augustine's Office (uncredited) Jack Knight Mabel Pancho Córdova Doktor Enrique Lucero Jeffe Rutanya Alda Rutanya Sweet Jack Riley Riley Ken Sansom Colony Guard Jerry Jones Detective Green Robert Altman Ambulance Driver (uncredited) David Carradine Dave aka Socrates (uncredited) Carl Gottlieb Wade Party Guest (uncredited) George Wyner Cop at Beach (uncredited) Leslie McRay Lucille (uncredited) Elliott Gould Philip Marlowe Nina van Pallandt Eileen Wade Sterling Hayden Roger Wade Mark Rydell Marty Augustine Henry Gibson Dr. Verringer David Arkin Harry Jim Bouton Terry Lennox Warren Berlinger Morgan Arnold Schwarzenegger Hood in Augustine's Office (uncredited) Jack Knight Mabel Pancho Córdova Doktor Enrique Lucero Jeffe Rutanya Alda Rutanya Sweet Jack Riley Riley Ken Sansom Colony Guard Jerry Jones Detective Green Robert Altman Ambulance Driver (uncredited) David Carradine Dave aka Socrates (uncredited) Carl Gottlieb Wade Party Guest (uncredited) George Wyner Cop at Beach (uncredited) Leslie McRay Lucille (uncredited)