TV Trivia Question: Who is the only character, played by the same actor, to be featured in six ....?

different TV shows on three different networks. NOTE: the six shows include reasonably prominent guest-starring appearances.

10 pts to the first person who names the character, actor and all 6 shows. (one show is relatively obscure) If nobody gets all 6, 10 pts to the first person who can name 5 of 6 (plus the character/actor).

If no correct answers I will add hints occasionally.

no, not frasier or bill cosby or carol burnett

i will say it is a man

richard belzer played detective john munch on these shows

law and order
law and order s.v.u.
law and order trial by jury
arrested development
homicide "life on the street"
the x files
sesame street

the 3 networks are fox, nbc and pbs

Frasier Crane played by Kelsey Grammar?

umm bill cosby playing cliff huskstible?
or kelsy grammer playing fraiser?
idk! thats a hard one!! i need hints!

Carol Burnett

Kelsey Grammer

Disneyland(1990) - Dr. Frasier Crane
Wings(1992) - Dr. Frasier Crane
Cheers(1984-1993) - Dr. Frasier Crane
The John Larroquette Show(1995) -Dr. Frasier Crane
Frasier(1994-2004) -Dr. Frasier Crane
Frasier: Analyzing the Laughter(2004) - Dr. Frasier Crane

OR

Ray Romano

Dr. Katz, Professional Therapist(1995-1997) - Ray
Cosby(1997) - Raymond "Ray" Barone
The Nanny(1998) - Raymond "Ray" Barone
Becker(1999) - Raymond "Ray" Barone
Everybody Loves Raymond(1996-2005) - Raymond "Ray" Barone
King of the queens(1998-2005) -
Raymond "Ray" Barone

Is it Milo Ventimiglia?

wow...somebody got to it before me, but they forgot one.

Richard Belzer played Det. John Munch on:

Law & Order: Special Victims Unit
Law& Order: Trial By Jury
Arrested Development
The Beat
Law & Order
Homicide: Life on the Street
The X-Files
...and Sesame Street, but I'm not sure that counts :)