2024

(10 episodes) as Rufus Cotesworth

2022		Benjamin Franklin (2 episodes) as Benjamin Franklin (voice)
2022		Indivisible: Healing Hate (6 episodes)

2017

(10 episodes) as Hal Wackner

2015

(2 episodes) as Self

2014

(1 episode) as Self

2011

(96 episodes) as Saul Berenson

2009

(1 episode)

2008

(3 episodes) as Himself

2005		The Reichen Show (1 episode) as Self - Guest
2005		Criminal Minds (47 episodes) as Jason Gideon

2003

(29 episodes) as Rube John Sofer

2000

(1 episode) as Isaac Rice

1998

(1 episode) as Hippocrates (voice)

1996

(1 episode) as Self - Guest

1994		Touched by an Angel (1 episode) as The Driver / Satan
1994		Chicago Hope (46 episodes) as Jeffrey Geiger

1991

(1 episode) as Dr. Harry Hyman

1990

(1 episode) as Levi March / Glenn Fordyce

1989

(1 episode) as Hugh St. John Alastair Parkfield (voice)

1988		American Experience (1 episode) as Narrator (voice)
1988		LIVE with Kelly and Mark (1 episode)

1978

(1 episode) as Alan

1971

(1 episode) as Buddy Plummer

1956

(1 episode) as Self - Presenter