Acting

2010		Regular Show (20 episodes) as Mr. Maellard (voice)
2010		Rizzoli & Isles (2 episodes) as Dr. Arthur Isles

2008

(1 episode) as Walt Whitman Wellesley IV

2004		Justice League Unlimited (1 episode) as Solovar (voice)
2004		Stargate Atlantis (3 episodes)

2003		Lilo & Stitch: The Series (67 episodes) as Dr. Jumba Jookiba (voice)
2003		Chicago: City of the Century (3 episodes) as Self - Narrator (voice)

2002

(33 episodes) as Gene Purdy

2001		Justice League (1 episode) as Solovar (voice) (1 episode) as Solovar / Car Owner (voice)
2001		Disney's House of Mouse (0 episodes) as Cogsworth (1 episode) as Cogsworth (voice)

2000		Static Shock (1 episode) as Dr. Odium (voice)
2000		Teacher's Pet (47 episodes)

1999		New York: A Documentary Film (8 episodes) as Narrator
1999		Love & Money (13 episodes) as Nicholas Conklin

1998		The Wild Thornberrys (1 episode) as Karroo (voice)
1998		Two Guys and a Girl (13 episodes) as Mr. Bauer

1997		The Wonderful World of Disney (1 episode)
1997		Ally McBeal (1 episode) as Judge Andrew Peters
1997		The Angry Beavers (1 episode)
1997		The Practice (1 episode)

1996

(1 episode) as Randolph Hitchcock

1995		The Outer Limits (1 episode) as Reverend Dr. Thomas Tilford
1995		Cybill (1 episode)

1994

(1 episode) as Jones / Satan

1993		Frasier (1 episode) as Leland Barton
1993		Dr. Quinn, Medicine Woman (1 episode)

1992

(1 episode)

1990

(1 episode)

1988

(31 episodes) as Narrator (voice)

1987

(1 episode) as Timicin

1986		ALF (2 episodes) as Flakey Pete
1986		Matlock (1 episode) as Thomas Baldwin (2 episodes)

1985		North and South (7 episodes) as Rep. Sam Greene
1985		The Ray Bradbury Theater (1 episode) as Leonard Mead

1984		Murder, She Wrote (1 episode) as Howard Deems (1 episode) as Aubrey Thornton
1984		The First Olympics: Athens 1896 (2 episodes) as Dr. William Milligan Sloane

1979

(1 episode)

1976		The Tony Randall Show (1 episode) as Robert W. Cleaver
1976		Charlie's Angels (1 episode) as Scott Woodville

1974		Dinah! (1 episode) as Self
1974		Rhoda (2 episodes)
1974		NOVA (8 episodes) as Narrator

1973

(1 episode) as Bryan LeBlanc

1972

(131 episodes) as Charles Winchester

1971

(1 episode) as Doc

1956

(1 episode) as Self (archive footage)

Directing

1972

(2 episodes) … Director