Mark Bernstein is a fictional character portrayed by Casey Ellison in the TV series The Wonder Years.
In the first episode they appeared in, titled Rock 'n Roll (season 3), they were 13 years old.
They appear in 1 episodes out of a total of 115 aired
Episodes1
Rock 'n Roll
episode S3.E10 january 1990New student Larry Beeman turns Kevin on to the wonders of rock and roll. Pretty soon, Kevin purchases his own guitar and is rocking with Larry and his band.