Simon Helberg

as Self - Guest(1 ep)

as Martin Phister(8 eps)

as Mediator

as Les (voice)(1 ep)

as Self (archive footage) (uncredited)

as Dimitry

as Luca Clark(5 eps)

as Nathan

as Self

as Squirrel (voice)(1 ep)

as The Accompanist

as Self (archive footage)

as Little Man

as Howard Wolowitz (voice)(1 ep)

as Jeremy

as Cosmé McMoon

as Self

as Self - Guest(2 eps)

as Translator

as Self(1 ep)

as Quinn

as Napoleon (voice)(52 eps)

as Frank M. Robinson(1 ep)

as Seth

as Self(1 ep)

as Self(1 ep)

as Frank

as Bian Zao (voice)(2 eps)

as Young Husband

as Self(3 eps)

as Self - Guest(2 eps)

as Ronaldo (voice)(1 ep)

as Rabbi Scott

as Self - Guest(2 eps)

as Moist(3 eps)

as Dreidel L'Chaim

as Self

as Rathkon

as Howard Wolowitz(279 eps)

as Kevinator(1 ep)

as Staffer

as Stewart

as TJ Goldman

as Shooter #5(1 ep)

as Junior Agent

as Alex Dwyer(14 eps)

as Simon

as Al

as Bill Skidelsky(1 ep)

as Simon

as CBS Page

as Vinnie(1 ep)

as Stan(1 ep)

as Dr. Revanche (voice)(2 eps)

as Creep (voice)(1 ep)

as Self(1 ep)

as Seth(4 eps)

as Terry

as Self(1 ep)

as Neil(1 ep)

as Jeff(1 ep)

as Adam (DGA Trainee)

as Student Driver(1 ep)

as Hooker Buying Son(1 ep)

as Jerry

as Arthur(1 ep)

as Donnie Funkhouser(1 ep)

as Vernon

as Jack(1 ep)

as Andy Tinker(1 ep)

as Billy(1 ep)

as Gus Latrine(1 ep)

as College Roommate

as Spokesman(1 ep)

as Self(1 ep)