Has been performing as an actor all over the world since 1972. He has costarred in dozens of film and television productions, most notably as George McFly in the "Back to the Futures II and III," Teddy Conway in Pale Rider, also appeared in Diagnosis Murder and Max Keeble's Big Move. He directed three shows for the new Universal Theme Park in Osaka. Jeffrey has taught different aspects of acting and writing from college to fine arts schools. Jeffrey was founder and artistic director of the Flying Penguins improv troupe and helped develop the Los Angeles Theater Sports. He performed in the Second City Alumni, the Laugh Factory All-Star Improv Jam, and also co-wrote and directed the Laurel and Hardy Music and Magic Show on the Star Cruise Line in the South China Sea.