2020

(1 episode) as Bruce

2017

(1 episode) as Dr. Bowers

2013

(196 episodes) as Self

2011		Drew Carey's Improv-A-Ganza (40 episodes) as Self
2011		Working Class (1 episode) as Dr. Edwin Gould

2006

(3 episodes) as Self

2003		Two and a Half Men (28 episodes) as Herb (1 episode) as Herb Melnick (1 episode) as Dr. Melnick
2003		Reno 911! (1 episode)

2000

(1 episode) as Spyro von Madman (voice)

1998

(1 episode) as Self (219 episodes) as Himself

1997

(1 episode) as Abraham Lincoln (uncredited)

1995		MADtv (1 episode) as Self - Host
1995		The Drew Carey Show (233 episodes) as Lewis Kiniski

1994

(1 episode)

1993

(1 episode) as CIA Agent Kinkaid (1 episode) as Mac (1 episode) as Dave

1988		Murphy Brown (1 episode) as Acolyte Monk #2
1988		Whose Line Is It Anyway? (41 episodes) as Himself

1984

(1 episode)

1972

(42 episodes) as Tall Suit

2013

(12 episodes) … Executive Producer

1995

(1 episode) … Director