In no particular order:

Art Carney as Ed Norton in "The Honeymooners".

Norman Fell as Mr. Roper in "Three's Company" (he used to do a "look" in each episode - usually after he made a joke about Mrs. Roper. It cracks me up every time I see it).

Ed O'Neill as Al Bundy in "Married With Children".

Bob Denver as Maynard G. Krebs in "Dobie Gillis".

Christopher Lloyd as Jim Ignatowski in "Taxi".

Lucille Ball as Lucy Ricardo in "I Love Lucy".

Homer Simpson in "The Simpsons".

Nicholas Colasanto as Coach in "Cheers".