Tammy is a fictional character portrayed by Jaimie Alexander in the TV series It's Always Sunny in Philadelphia.
In the first episode they appeared in, titled Underage Drinking: A National Concern (season 1), they were 21 years old.
They appear in 1 episodes out of a total of 172 aired so far
Episodes1
Underage Drinking: A National Concern
episode S1.E3 august 2005The gang turns Paddy's into a safe haven for teens, but things get weird when they all get asked to the local high school prom.