Mary Jo Genaro is a fictional character portrayed by A.J. Langer in the TV series The Wonder Years.
In the first episode they appeared in, titled Eclipse (season 6), they were 18 years old.
They appear in 1 episodes out of a total of 115 aired
Episodes1
Eclipse
episode S6.E17 march 1993Kevin and his classmates take a bus trip to the planetarium to witness the solar eclipse. On the trip, Kevin and Winnie have a fight after he calls her "too perfect" while Chuck gets locked in a restroom, leaving him behind.