DeYoung's motion picture credits included Harry and Tonto, Glory, Blue Collar, Shock Treatment, Protocol, Flight of the Navigator and Flashback. De Young had a supporting role in the horror film Carnosaur 2 (1995, with John Savage, Christopher Darga and John Davis Chandler).
Other television appearances include playing Jay Nemman in the pilot episode of The X-Files. Jim Jansen also appeared in that episode. DeYoung also appeared in The Tommyknockers.