Acting
2022
The U.S. and the Holocaust
(
3 episodes
)
as
(voice)
2022
One Killer Question
(
2 episodes
)
as
Self
2022
The Lincoln Lawyer
(
9 episodes
)
as
David 'Legal' Siegel
2018
The Kominsky Method
(
1 episode
)
as
Himself
2017
9JKL
(
16 episodes
)
as
Harry
2017
Doubt
(
13 episodes
)
as
Isaiah Roth
2015
Grace and Frankie
(
1 episode
)
as
Dr. Rogers
2014
Mulaney
(
13 episodes
)
as
Oscar
2013
Ray Donovan
(
1 episode
)
as
Ezra Goodman (voice)
(
9 episodes
)
as
Ezra Goldman
2013
Maron
(
1 episode
)
as
Himself
2011
The Cape
(
2 episodes
)
as
Samuel
2010
Hawaii Five-0
(
1 episode
)
as
Leo Hirsch
2009
Drop Dead Diva
(
1 episode
)
as
Larry Baxter
2005
Masters of Horror
(
1 episode
)
as
Barney
2005
American Dad!
(
1 episode
)
as
Mr. Rothberg (voice)
2003
Las Vegas
(
1 episode
)
2003
K Street
(
3 episodes
)
as
Bergstrom
2002
Kim Possible
(
5 episodes
)
as
Mr. Stoppable (voice)
2002
Baby Bob
(
14 episodes
)
as
Sam Spencer
2001
History vs. Hollywood
(
1 episode
)
as
Self (archive footage)
2000
CSI: Crime Scene Investigation
(
1 episode
)
as
Earnest Boozell
2000
Backstory
(
1 episode
)
as
Self
1999
Law & Order: Special Victims Unit
(
1 episode
)
as
Walter Tompkins
1999
Mentors
(
1 episode
)
as
Albert Einstein
1998
Getting Personal
(
18 episodes
)
as
Jack Kacmarczyk
1997
The Shining
(
1 episode
)
as
Stuart Ullman
1996
Hey Arnold!
(
2 episodes
)
as
Rabbi Goldberg (voice)
1996
E! True Hollywood Story
(
1 episode
)
1995
Cybill
(
1 episode
)
1994
Friends
(
19 episodes
)
as
Jack Geller
(
1 episode
)
1994
Touched by an Angel
(
1 episode
)
as
Max
1994
The Magic School Bus
(
1 episode
)
as
(voice)
1994
Burke's Law
(
1 episode
)
as
Harry Waters
1993
Diagnosis: Murder
(
1 episode
)
as
Peyton Cartwright
1993
Moon Over Miami
(
1 episode
)
1993
Lois & Clark: The New Adventures of Superman
(
1 episode
)
1990
Law & Order
(
1 episode
)
as
Stan Harkavy
1989
The Simpsons
(
1 episode
)
as
Elliott Gould (voice)
1989
Agatha Christie's Poirot
(
1 episode
)
as
Rufus Van Aldin
1988
Act of Betrayal
(
2 episodes
)
as
Callaghan
1986
Together We Stand
(
19 episodes
)
1986
L.A. Law
(
3 episodes
)
as
Ed Morrison
1985
The Twilight Zone
(
1 episode
)
as
(segment "The Misfortune Cookie")
1985
Tall Tales & Legends
(
1 episode
)
as
Casey
1985
The Ray Bradbury Theater
(
1 episode
)
as
Leo Auffmann
1984
Murder, She Wrote
(
1 episode
)
as
Lt. J.T. Hanna
1984
E/R
(
22 episodes
)
as
Howard Sheinfeld
1983
The Hitchhiker
(
1 episode
)
as
Augie Benson
1982
Faerie Tale Theatre
(
1 episode
)
as
The Giant
1975
Saturday Night Live
(
1 episode
)
as
Self
(
1 episode
)
as
Self - Cameo (uncredited)
(
6 episodes
)
as
Self - Host
1974
Dinah!
(
1 episode
)
as
Self
1971
V.I.P. Schaukel
(
1 episode
)
as
Self
1967
Omnibus
(
1 episode
)
as
Self
1962
The Tonight Show Starring Johnny Carson
(
3 episodes
)
as
Self
1961
The Mike Douglas Show
(
5 episodes
)
as
Self
1956
Tony Awards
(
1 episode
)
as
Self - Presenter
1954
The Wonderful World of Disney
(
1 episode
)
as
Self
1944
Golden Globe Awards
(
1 episode
)
as
Self - Presenter
(
1 episode
)
as
Self