(voice)
De V.S. en de Holocaust (2022)
Self
One Killer Question (2022)
Legal Siegel
The Lincoln Lawyer (2022)
Himself
The Kominsky Method (2018)
Harry
9JKL (2017)
Isaiah Roth
Doubt (2017)
Dr. Rogers
Grace and Frankie (2015)
Oscar
Mulaney (2014)
Ezra Goldman
Ray Donovan (2013)
Ezra Goodman (voice)
Maron (2013)
Samuel
The Cape (2011)
Larry Baxter
Drop Dead Diva (2009)
Barney
Masters of Horror (2005)
Mr. Rothberg (voice)
American Dad! (2005)
Las Vegas (2003)
Bergstrom
K Street (2003)
Mr. Stoppable (voice)
Kim Possible (2002)
Sam Spencer
Baby Bob (2002)
Self (archive footage)
History vs. Hollywood (2001)
Earnest Boozell
CSI: Crime Scene Investigation (2000)
Backstory (2000)
Walter Tompkins
Law & Order: Special Victims Unit (1999)
Albert Einstein
Mentors (1999)
Jack Kacmarczyk
Getting Personal (1998)
Stuart Ullman
The Shining (1997)
Rabbi Goldberg (voice)
Hey Arnold! (1996)
E! True Hollywood Story (1996)
Cybill (1995)
Friends 4K (1994)
Friends (1994)
Jack Geller
Max
Touched by an Angel (1994)
The Magic School Bus (1994)
Harry Waters
Burke's Law (1994)
Peyton Cartwright
Diagnosis: Murder (1993)
Moon Over Miami (1993)
Lois & Clark: The New Adventures of Superman (1993)
Stan Harkavy
Law & Order (1990)
Elliott Gould (voice)
The Simpsons (1989)
Rufus Van Aldin
Detectives Op Vrijdag: Agatha Christie's Poirot (1989)
Callaghan
Act of Betrayal (1988)
Together We Stand (1986)
Ed Morrison
L.A. Law (1986)
The Twilight Zone (1985)
Casey
Tall Tales & Legends (1985)
Leo Auffmann
The Ray Bradbury Theater (1985)
Lt. J.T. Hanna
Murder, She Wrote (1984)
Howard Sheinfeld
E/R (1984)
Augie Benson
The Hitchhiker (1983)
The Giant
Faerie Tale Theatre (1982)
Self - Host
Saturday Night Live (1975)
Self - Cameo (uncredited)
Dinah! (1974)
V.I.P. Schaukel (1971)
The Tonight Show Starring Johnny Carson (1962)
The Mike Douglas Show (1961)
Self - Presenter
Tony Awards (1956)
The Wonderful World of Disney (1954)