Within the Gang in It’s Always Sunny in Philadelphia, there are a bunch of hilarious double acts. Mac and Dennis have a co-dependent relationship, Charlie and Frank share a bed, etc. One of the funniest duos in the show are Dennis and Dee, who have a lot in common because they’re twins and they were also both raised by the deplorable Frank Reynolds.
Dennis believes he is a “golden god,” and after buying a Range Rover, Dee believes she’s a “golden goddess.” These two sociopaths share a complete disregard for everybody besides themselves – including each other – as well as delusions of grandeur. So, they’ve had some hilarious misadventures over the years.
Gun Fever Too: Still Hot (Season 9, Episode 2)
In the season 9 sequel to season 1’s gun control episode, “Gun Fever Too: Still Hot,” the Gang is split on the gun issue. While Frank is getting the city riled up, Mac and Charlie decide to train kids to defend themselves from school shooters while Dennis and Dee hope to get the legislation reformed.
All of Dennis and Dee’s attempts to prove that buying a firearm is too easy actually disprove their point as they’re robbed by a back-alley gun dealer and held at gunpoint by everybody at an unlicensed gun show.
The Gang Gets Trapped (Season 7, Episode 9)
Season 7’s “The Gang Gets Trapped” is a hilariously self-aware commentary on the Always Sunny formula, beginning in the midst of yet another poorly conceived plan being pulled off by the Gang.
In a bid to steal an antique vase that they believe should be in a museum, Dennis and Dee get themselves stuck in a closet, because they broke into the vase owner’s house, and then it turned out they were home. The two get to spend a lot of time together, making for a great episode showcasing their dynamic.
Mac’s Big Break (Season 6, Episode 4)
While Charlie is training Mac for his hockey stadium appearance in season 6’s “Mac’s Big Break,” Dennis and Dee try their hand at podcasting with Frank as their producer crunching on crackers down the mic.
Throughout the episode, Dennis and Dee go to extreme lengths like dumping a bucket of dishwater on the Waitress and playing silly sound effects to attract listeners.
Mac And Charlie Write A Movie (Season 5, Episode 11)
While Mac and Charlie are trying to cook up a screenplay with a mind-blowing plot twist in season 5’s “Mac and Charlie Write a Movie,” Dennis and Dee are working as extras in an M. Night Shyamalan movie.
Frank becomes Dennis’s manager and gets him more on-camera exposure and less makeup than Dee. An incensed Dee is covered in fake blood and told to lie face-down, getting no screen time.
Frank’s Back In Business (Season 8, Episode 7)
The A-plot of season 8’s “Frank’s Back in Business” concerns Frank’s return to his old company when it hits hard times, but the B-plot with Dennis stealing the identity of Brian LeFevre is even more memorable.
When Dennis finds a wallet in the bar, he adopts the owner’s identity in a quest to “get off” on the thrill of wearing another man’s skin. Dee tries to get into it, but she finds she doesn’t enjoy identity theft nearly as much as Dennis, showcasing some of their differences.
The Gang Broke Dee (Season 9, Episode 1)
After the Gang’s constant abuse of Dee leads her to give up entirely in the season 9 premiere “The Gang Broke Dee,” Mac, Charlie, and Frank respond by trying to pick up her spirits. Dennis goes the other way and starts looking for a harmless middle-aged loser to marry her off to.
The episode’s hilarious twist ending reveals that Dee’s unexpected meteoric rise on the standup comedy scene was staged by Frank – and Dennis wasn’t in on it, so he’s just as humiliated.
The Gang Goes To The Jersey Shore (Season 7, Episode 2)
While Mac and Charlie are skeptical because of the reality show, Dennis and Dee insist that the Jersey Shore is a magical place where dreams come true. They convince the Gang to take a vacation down there so they can nostalgically relive their fondest childhood memories.
However, when Dennis and Dee get there, it’s very different than how they it. They find homeless people having sex under the boardwalk and end up being forced to take part in a robbery at gunpoint.
Mac And Charlie: White Trash (Season 6, Episode 5)
When Mac and Charlie get rejected from an exclusive pool club in season 6’s “Mac and Charlie: White Trash,” Dennis and Dee arrogantly assume that they’ll be able to just waltz right in.
However, they’re rejected from the club, too. Dennis and Dee’s storyline in this episode gets a ton of comedic mileage out of the culture shock of two spoiled rich kids attending a public pool full of shoe thieves and children throwing rocks at each other.
Sweet Dee Has A Heart Attack (Season 4, Episode 10)
Dennis and Dee become concerned about their health when the latter has a heart attack in season 4’s “Sweet Dee Has a Heart Attack.” While Mac and Charlie get jobs to secure insurance, Dennis and Dee decide to get in shape, which they consider to be free insurance.
However, they find that the actual exercise part sucks, so they skip that and inject some collagen in the hopes of improving their health by improving their self-image. Unfortunately, Dee screws it up and Dennis’s face puffs up.
Dennis And Dee Go On Welfare (Season 2, Episode 3)
Realizing that working at Paddy’s is delaying their dreams of becoming a veterinarian and an actor, respectively, Dennis and Dee quit their jobs and try to scam the government out of unemployment benefits in season 2’s “Dennis and Dee Go on Welfare.”
However, they find that they don’t meet any of the criteria to qualify for welfare payments, so they try to get intentionally addicted to crack, which of course goes horribly.