Billy Cooper is a fictional character portrayed by Jonathan Morgan Heit in the TV series Monk.
In the first episode they appeared in, titled Mr. Monk's Favorite Show (season 8), they were 9 years old.
They appear in 1 episodes out of a total of 124 aired
Episodes1
Mr. Monk's Favorite Show
episode S8.E1 august 2009Monk must reconcile reality with his fan-boy feelings toward an actress who starred as a child in a Brady Bunch-style sitcom in his youth after an attempt on her life.