The Punk (or The Bike Thief, real name Joe) is the main antagonist of the 1997 film adaptation of Leave It To Beaver. He is a teen who compliments Theodore "Beaver" Cleaver on his new bike, offers to show him tricks and uses it as a pretense to ride off with his bike. Occasions occur in the movie in which Beaver chases the guy down and tries to get back his bike.

He was portrayed by Glenn Walker Harris Jr.