Howie Mandel is a Canadian stand-up comedian, television host, and actor. He is well known as host of the NBC American game show Deal or No Deal, as well as the show's daytime and Canadian-English counterparts. Before his career as a game show host, Mandel was best known for his role 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. Mandel became a judge on NBC's America's Got Talent, replacing David Hasselhoff, in the fifth season of the reality talent contest.