Judd Asher Nelson is an American actor. He is best known for his roles as Hot Rod/Rodimus Prime in The Transformers: The Movie, John Bender in The Breakfast Club, Alec Newbury in St. Elmo's Fire, Alex in Cybermutt, Joe Hunt in Billionaire Boys Club, Nick Peretti in New Jack City, Billy Beretti in Empire, and Jack Richmond in the television series Suddenly Susan.

The Transformers: The Movie is a 1986 animated science fiction action film based on the Transformers television series. It was released in North America on August 8, 1986, and in the United Kingdom on December 12, 1986. It was co-produced and directed by Nelson Shin, who also produced the television series. The screenplay was written by Ron Friedman, who created Bionic Six a year later.