20 Things You Didn't Know About It's Always Sunny In Philadelphia
12. Dennis Isn't Named After Glenn Howerton For One Reason
Though Charlie is named after actor Charlie Day, and Mac (first name Ronald) is played by Rob McElhenney, Glenn Howerton decided to buck the trend and not name Dennis after himself.
Howerton later admitted the reason for this was that he wanted to create some distance between himself and the sociopathic character, to ensure people didn't conflate the two.
Considering that Dennis may well be a serial killer, the logic is certainly sound. But that likely hasn't stopped too many fans from entirely associating Howerton with Dennis anyway, given that it's undeniably his signature role and probably always will be.