David Clark (1 episode, 1981)
Larry Merkin / ... (2 episodes, 1981-1983)
Brett DeLossanto (unknown episodes)
Kenneth O'Donnell, Special Assistant to the President
Air Force Major / ... (2 episodes, 1974-1975)
Bill Wayland / ... (2 episodes, 1976-1978)
Dr. Kevin Morely (2 episodes, 1973-1976)
Don Woodward / ... (3 episodes, 1971-1973)
Hanar / ... (2 episodes, 1966-1968)
Aaron Bornstein (2 episodes, 1966)
Dan Swanson / ... (2 episodes, 1964-1966)