Janet is a fictional character portrayed by Lauri Hendler in the TV series Young Sheldon.
In the first episode they appeared in, titled Freshman Orientation and the Inventor of the Zipper (season 4), they were 55 years old.
They appear in 1 episodes out of a total of 141 aired
Episodes1
Freshman Orientation and the Inventor of the Zipper
episode S4.E6 january 2021College orientation does not go as Sheldon planned; Mary is invited to a party when she's mistaken for a university student; George Sr. helps Pastor Jeff set up a children's nursery.