10 Classic TV Characters Who Weren't Added Until Later Seasons
5. Frank Reynolds - It's Always Sunny In Philadelphia
It's Always Sunny in Philadelphia was a pretty funny show in the first season, but it really took on a new life and came into its own in Season 2 with the introduction of Frank Reynolds.
Played by Danny DeVito, Frank is introduced in the Season 2 premiere as Dennis and Dee's father. But what might at first seem like a lame attempt to have an established actor boost the show's popularity quickly becomes one of the series' wisest moves.
Frank totally embodies the spirit of It's Always Sunny in Philadelphia. In the midst of a midlife crisis, Frank is absolutely insane, growing more and more mentally unstable throughout the series. Even though he's the oldest member of the gang, he's far from the wise old man character dealing out advice.
He's constantly exploiting the gang and insulting his kids, always cracking jokes about Dee's looks. This is a character who, we later find out, would buy for himself the Christmas gifts his kids wanted in order to see them suffer. Meeting this guy, it's pretty clear how Dennis and Dee grew into the sociopaths they are today.Yet Frank is a pretty vital part of the show's cast, and going back to the first season, the series feels so empty without him.