Kevin Sussman

as Bipolar Man

as Stuart Bloom / Alternate Stuart Bloom(10 eps)

as Self(1 ep)

as Pursuit Disk / Clark (voice)(1 ep)

as Walter Pine(5 eps)

as Mark Roessler(3 eps)

as Agent Kevin Saxton(1 ep)

as Steve(3 eps)

as Cancer Scam Victim(2 eps)

as Andy (voice)

as Benny

as Scott Belcher / O.C.D.

as Shakey (voice)

as Mac Bailey

as Skeeter(1 ep)

as Stan

as Self

as Daffy Giraffy(1 ep)

as Phil Redmond(1 ep)

as Tuchman Marsh Man

as Dave

as The Palindrome / Ivan Avi(1 ep)

as Tiny Shorts Guy

as Ras

as Stuart Bloom(84 eps)

as Commercial Director

as Walter(14 eps)

as Lenny

as Denis Slater

as Dwayne(1 ep)

as Terry(3 eps)

as Neil

as Ira

as James

as Barry Lowenstein

as Tyler Cohen

as Calculator Guy

as Caesar

as Phil Hobart(1 ep)

as Steve

as Supernerd

as Don(1 ep)

as Lenny

as Alan Joseph Zuckerman

as Tuba Guy(1 ep)

as Kevin(1 ep)

as Colin(2 eps)

as Joe(1 ep)