Glenn Howerton Reacts to It's Always Sunny in Philadelphia Fan Theories

While backstage at 'The Late Late Show,' Glenn Howerton gives his take on funny 'It's Always Sunny in Philadelphia' fan theories from Reddit.

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[GoldenHawk]

Dennis Reynolds did a phenomenal job acting as Glenn Howerton here

[NickCorvello]

Lol Glenn answered the 2nd theory question exactly like Dennis would. Perfect

[progrocker]

"A.P. BIO" a fever dream inside Dennis's head:

"That is not the case, " Glenn replied whilst nodding in approval.

[marzy]

"if you go back and watch every season of It's Always Sunny In Philadelphia", guess its time to re-watch for the 8th time

[mr.kazupremiumfantasy]

Glenn was doing "Humming bird's" during this whole segment.

[SamuraiShampoo___]

I really like the idea that Sunny and the Office take place in the same universe and would be inconsolable if Michael Scott strolled into Paddy’s one day. But I know it’s only a boy’s foolish dream.

[ttlpwn]

Using the fan theory to (not so subtly) encourage people to (buy and) re-watch the entire series to find these clues (which were probably not intended) to Dennis' (and the world's) true nature. Well played, Sir.

[haninhk]

"Yeah... No, I mean no. But yes. But no. Yes... No. Yes? No?" 😁

[catgilfillan]

Ughhhh I love Glenn so much. Dennis is such a genius character.

[ugly]

This dude is a greek god who hasnt begun to peak hes still in his first act and he lays women in the pococnos because of the implication

[brandongonzales]

I hate that it's always sunny in philadelphia is not on Netflix anymore 😐

[poopmaster]

Lol " if you go back and watch every episode" Dennis I'm constantly doing that.

[ericwidder]

Dennis is a winner and he doesn't listen to things like "No. Or don't... or STOPP!"

[alexisgauvin]

Definitely true about watching the show over again and finding new connections. It’s Always Sunny is one of my favorite shows and have seen all 12 seasons a countless number of times but I always figure out something new in an episode no matter how many times I’ve seen it.

[treyroberson]

Is Pepe Silvia actually Pennsylvania and Charlie just mess read it cuz he’s illiterate? Same with carol in HR...was it “care of HR”

[Ant]

Watching this made me think of the scene where he is stalking the waitress at night in the clown costume and squeaky shoes. 🤣

[vujadey]

LMFAO @ 1:40 during that whole yes/no back and forth. Hilarious

[dennisreynolds]

My theory is Dennis snapped the moment Dee ripped the head off of Mr. Tibbs. After that he slowly become more and more psychotic.

[Willskull]

best comedy show for me since I was 15, even with 27 I still want it to be that badass show that is always there every year

[lorireece]

Glenn, I just want you to know that I truly LOVED That 80s Show! I was (and still am) so mad that it didn’t get the respect it deserved! I wish you much luck in your career!