He began to pursue legitimate acting and was cast in a pilot television show called Jack & Jill in 1999. The show was critically panned and cancelled quickly. He had a brief stint as "Eli" in the T.V. show Felicity. A string of television guest appearances followed (including Baywatch), as well as cameos in various films. In 2002 the pilot for the show What I Like About You was picked up, but once again his work was critically panned. The series was cancelled.
Rex most recently appeared in the film "Scary Movie 3".