Little Ritchie on 'The New Adventures Of Old Christine' 'Memba Him?!

California kid Trevor Gagnon was only 11 years old when he landed the role of small son Richard "Ritchie" Campbell Jr. -- the 3rd grader who gets pulled in two directions by his old and new moms -- in the early 2000s CBS sitcom, "The New Adventures of Old Christine."

Trevor Gagnon was cast on the family-friendly show opposite actors like Clark Gregg as Richard Campbell Sr., Emily Rutherfurd as the new Christine Hunter ... and of course, Julia Louis-Dreyfus as the old Christine Campbell.

Gagnon is also well known for playing Loogie in the rockin' 2009 movie, "Shorts."