George Kirby (June 8, 1923 – September 30, 1995) was an American comedian, singer, and actor from Chicago, Illinois.
Kirby broke into show business in the 1940s at the Club DeLisa, a South Side establishment that employed a variety-show format and preferred to hire local singers, dancers, and comedians. His first recording was as a stand-up blues singer, performing "Ice Man Blues" on a Tom Archia session done in 1947 for Aristocrat Records.
Biography from Wikipedia, CC BY-SA. Credits and photos from TMDB.
The titles people know George from.
IMDb rating of each title on Cineora, by year.

as George

2 episodes
as Elmo
as Duchamp

as Gruddy
as Lieutenant Gunther
3 episodes

as King

as Manny · 4 episodes
as Eubie Sherwin · 1 episode

as Bartender
13 episodes

as Kirk Douglas Impressionist
as Mr. Mystic · 1 episode

as Moses
as Party Guest (uncredited)
The people who keep turning up in George’s titles.