Jack Gilford

as Bernie Lefkowitz

as Mr. Butterworth

as The Old Man

as Mr. Singer

as Max Weinstock

as Bernie Lefkowitz

as Brooks Carmichael

as Marty Ratner

as Bernie Nelson

as Self - Narrator (voice)

as Dr. Jelliff

as Max

as Gog

as Wally

as Stanley Bracken

as Tailor

as Grandpa Hollyhock

as Joe Reiger

as Referee

as Fingers

as Horace Bascons

as Finklestein

as Barney Gaylord

as Stage 8 (voice)

as Mischa

as Joe Ackerman

as The Herald (voice)

as Ned

as Phil Greene

as King Sextimus

as Alexander Throttlebottom

as Wilbur Peabody

as Bernard Bernstein

as Dr. "Doc" Daneeka

as Dr. Jonas Salk

as Wilbur Harlow

as Sam Beckerman

as Avery Dugan

as Self - Guest / Various Characters

as Self - Guest

as Mr. Foreman

as Hysterium

as Mr. Schwartz

as Papa Andersen

as Simon the Likeable

as King Sextimus

as Self

as Self

as Louis Brandt

as David Marcus

as Willie Drucker

as Bontsche Shveig / Angel

as Box Office Clerk (uncredited)

as Joey Bagle

as Specialty

as Nightclub Show Mimic