Comic Relief USA was a non-profit charity organization hosted in part by a stand-up comedian who rose to fame in what television series?
Robin Williams Robin McLaurin Williams (July 21, 1951 – August 11, 2014) was an American stand-up comedian and actor. Starting as a stand-up comedian in San Francisco and Los Angeles in the mid-1970s, he is credited with leading San Francisco's comedy renaissance. After rising to fame as Mork in "Mork & Mindy" (1978–82), Williams established a career in both stand-up comedy and feature film acting. He was known for his improvisational skills.
Howie Mandel Howard Michael Mandel (born November 29, 1955) is a Canadian comedian, actor, television host, and voice actor. He is known as host of the NBC game show "Deal or No Deal", as well as the show's daytime and Canadian-English counterparts. In 1987, Mandel starred alongside Amy Steel in the comedy film "Walk Like a Man". Before his career as a game show host, Mandel was best known for his role as rowdy ER intern Dr. Wayne Fiscus on the NBC medical drama "St. Elsewhere". He is also well known for being the creator and star of the children's cartoon "Bobby's World", as well as a judge on NBC's "America's Got Talent".