Lewis J. Stadlen

as Efram

as Ralph Masius (3 episodes)

as Dr. Maurice Samuels (1 episode)

as Lewis J. Stadlen / Max Bialystock (1 episode)

as Banjo

as Dr. Ira Fried (1 episode), as Dr. Freid (3 episodes), as Dr. Ira Freid (1 episode)

as Bandleader

as Ed Kenrow

as Lekish / Zeinvel / The Peddler (voice)

as Moderator

as Eli Schwab (1 episode)

as Jay Blake (1 episode)

as Norman Wagstaff (uncredited)

as Mr. Cooper (1 episode), as Danny (1 episode)

as Marty

as Lupinsky

as Dr. Gruber

as Allan's Father

as John Taylor (24 episodes)

as Stanley

as Sam Liebowitz

as Efram (1 episode)

as Berman

as Potofski