George Costanza is a "short, stocky, slow-witted, bald man," according to Elaine Benes (and George himself) on the the television sitcom "Seinfeld." George Costanza also proclaims that he is "Lord of the Idiots."
Jason Alexander is not George Costanza. While he did play the "Lord of the Idiots" on "Seinfeld," Jason Alexander actually got his start in show business as a song-and-dance man on Broadway. Sure, he may be a little vertically challenged, but Jason is really a man of many talents with a clear-toned, musical voice.