Jarret's first film was Going Ape! in 1981. Other film roles include The Karate Kid Part III, Apollo 13, and Last Days. Jarret made guest appearances in 21 Jump Street, L.A. Law, Party of Five, and The West Wing.
Jarret is also a lyricist and vocalist of the rock/alternative rock vein. In the early 1990s, Jarret fronted the Los Angeles-based rock band The Unknown. The band had limited success for a short period, once appearing at the House of Blues with soul great Tower of Power. The band attracted some record label interest, but broke up before any deals materialized.
