91 Child stars: Where are they now?

Slideshow posted in Photos | Thursday, June 10, 2010

9 of 91: Christopher Castile is perhaps best known for his roles as Ted Newton in 'Beethoven' and Mark Foster in 'Step by Step.' Following the end of 'Step by Step' in 1998, Castile retired from acting. Currently, he lives in Edmonton, Alberta, Canada and is an adjunct professor at Biola University in La Mirada, California, where he teaches political science.

(Pictured: Christopher Castile appears in a scene from the 1992 film 'Beethoven.') ( Photo / Universal Pictures)

Get more: Celeb Lives