John Rubinstein

as Dr. Morrow

as Older Jess Oppenheimer

as Self

as Doctor (1 episode)

as Doctor Marsten (1 episode)

as Allan Steiner (1 episode)

as Old William (1 episode)

as Daniel Webster (1 episode)

as Melvin (1 episode)

as Rabbi Schneiderman (1 episode)

as Prefect (1 episode)

as President Fletcher (2 episodes)

as Dr. Paulson (1 episode)

as Ron Schiller (1 episode)

as Albert Einstein (1 episode)

as Uncle Liam

as Marcus Wheeler

as Senator Simpson (6 episodes)

as Principal Skinner (1 episode)

as Professor Addison (1 episode)

as Dr. White

as Dr. Floyd Ferris

as Stan

as Jack Crawford (3 episodes)