2022

(16 episodes) as Paul Child/Charles Child

2020

(1 episode) as Self

2017

(1 episode) as Henry Neumann

2015

(2 episodes) as Henry Neumann

2014

(1 episode) as Self

2009

(1 episode) as Frank Prady

2007

(1 episode) as Himself

2006

(1 episode)

2004		The Tony Danza Show (3 episodes) as Self
2004		The Celebrity Apprentice (1 episode)

2003

(13 episodes) as Addison

2000

(1 episode)

1999

(1 episode) as Self - Guest

1998

(2 episodes) as Daedalus (voice) (0 episodes) as Daedalus

1997

(4 episodes) as Self

1995		The Adventures of Hyperman (1 episode)
1995		The Outer Limits (1 episode) as Dr. Jack Henson
1995		Happily Ever After: Fairy Tales for Every Child (1 episode) as Puss (voice)

1993		Frasier (264 episodes) as Niles Crane
1993		Late Night with Conan O'Brien (3 episodes) as Self - Guest
1993		GMTV (1 episode) as Self

1992		The Tonight Show with Jay Leno (6 episodes)
1992		The Powers That Be (21 episodes) as Theodore Van Horne

1990

(1 episode)

1989

(1 episode) as Felix (voice) (2 episodes) as Cecil Terwilliger (voice)

1988		Knightwatch (1 episode) as Gibson
1988		LIVE with Kelly and Mark (1 episode)

1985

(1 episode)

1975

(1 episode) as Self - Host

1956

(2 episodes) as Self - Presenter

1952

(1 episode) as Self

1949

(1 episode) as Self