Judd Asher Nelson (born November 28, 1959) is an American actor, screenwriter, and producer. He is best known for being a member of the &quot;Brat Pack&quot; in the mid-1980s; and for his roles as John Bender in The Breakfast Club, Alec Newbary in St. Elmo&#x27;s Fire, Hot Rod and Rodimus Prime in The Transformers: The Movie and Jack Richmond in Suddenly Susan.