Mac tries to look cool and dresses as Viggo Mortenstein from the Lord of the Rings movies.
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Charlie attempts to dress like a vampire when he puts on a Phantom of the Opera costume on Always Sunny.
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Artemis and Frank have a little lovers quarrel in costume during the Always Sunny Halloween-themed episode.
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A picture from the Halloween episode of It's Always Sunny episode, "Who Got Dee Pregnant?" Dee is pregnant and the guys try to figure out who the father is.
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Mrs. Mac and Mrs. Kelly move in together after Mrs. Mac burns her house down. Yes, we know this picture isn't from that episode, but look at them together.
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Mac and Charlie get stuck in the bottom of a drained pool in "Mac and Charlie: White Trash."
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Charlie plays a little hockey in his Philadelphia Flyers jersey on Always Sunny.
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Charlie is stuck diving to clean the boat when the gang gets a boat. Just another Charlie job.
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When Dennis marries his high school sweetheart, he realizes he needs to get a divorce in "Dennis Gets Divorced."
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Mac fights gay marriage when it gets in his way in the season six premiere of Always Sunny.
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The cast of It's Always Sunny in Philadelphia look hilarious as ever on their tricycles.
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Charlie goes over to the McPoyles after they accuse their old high school gym teacher a molester.
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It's Always Sunny Quotes

Dee: You've been really stressed so I thought I'd take you to a spa day. Just the two of us.
Charlie: A what day?
Dee: Spa day
Charlie: What is this word, spa? I feel like you're starting to a say a word and you're not finishing it. Spaghetti? Are you taking me to a spaghetti day?

Charlie: what is your spaghetti policy?
Dee: Are you hearing this? He doesn't belong in a place like this.