Robert Wagner Jonathan Hart Actor Stefanie Powers Jennifer Hart Actor Lionel Stander Max Actor Roddy McDowall Guest Star Jill St. John Guest Star Eugene Roche Guest Star Clifton James Guest Star Michael Lerner Guest Star Stella Stevens Guest Star Lee Bryant Guest Star James Noble Guest Star Mimi Maynard Guest Star David Landsberg Guest Star Paul Napier Guest Star Paul Tuerpe Guest Star Art Kassul Guest Star Jack Perkins Guest Star Don Dandridge Guest Star George Skaff Guest Star Eugenia Wright Guest Star Elizabeth Marner-Brooks Guest Star Tara Buckman Guest Star Lina Raymond Guest Star Natalie Wood Guest Star Aaron Spelling Producer Leonard Goldberg Producer Tom Mankiewicz Director, Writer Sidney Sheldon Writer