Jason Alexander (born September 23, 1959) is a television, cinema and musical theatre actor, best known for his role as George Costanza on the hit television series Seinfeld.
George Louis Costanza is a fictional character on the United States-based television sitcom Seinfeld (1989–1998), played by Jason Alexander. He has variously been described as a “short, stocky, slow-witted, bald man” (by Elaine Benes), “Lord of the Idiots” (by Costanza himself), and as “the greatest sitcom character of all time”.
The McDLT is perhaps best remembered for its marketing, which focused on variations of the theme “Keep the hot side hot, and the cool side cool.” A fairly well-remembered 1985 commercial released to market the new sandwich featured a young Jason Alexander, and has obtained a minor following on the web.
For more McDonalds commercials, check out Video Ichiban.