Jack Mara is a fictional character portrayed by Robert Pine in the TV series It's Always Sunny in Philadelphia.
In the first episode they appeared in, titled A Cricket's Tale (season 12), they were 75 years old.
They appear in 1 episodes out of a total of 172 aired so far
Episodes1
A Cricket's Tale
episode S12.E9 march 2017A typical day in the life of Cricket, with possible redemption when his family intervenes.