Hollywood has a bit of twin obsession but sometimes, seeing double isn't necessarily a bad thing.
Twins on TV shows is a pretty popular trope ranging from evil twins, twins who get into shenanigans together, and long lost twins who bump into each other and start a new life together.
Other times, twins are used solely as a plot device.
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But really, there's no shortage of switcheroo tomfoolery when twins are involved.
Sometimes, the actors are famous twin duos in real life, and other times, a sole actor is brilliantly pulling double duty.
Let's take a look back at some of our favorite TV twins both fraternal and identical.
You may even come across a few doppelgangers.
Cheryl and Jason Blossom - Riverdale
Although Riverdale kicked off with Jason Blossom's death, the red-headed athlete was very much a part of what molded Cheryl Blossom. She loved her twin, sometimes a little too much as we saw their twisted and possibly incestual relationship play out through many flashbacks. Jason becomes Cheryl's motivation for most of Riverdale Season 1 as she mourns his death.
Zack and Cody - Suite Life of Zack & Cody
Zack & Cody were 'the' twins on the Disney Channel from 2005-2008. The wild brothers lived the "suite life" at the Tipton Hotel in Boston. Honestly, who didn't want to live in a hotel after watching this series? Zack & Cody had their differences -- one was studious 'nerd' while the other was a playful trouble maker -- but they never ran out of adventures to pursue.
Tia and Tamera - Sister, Sister
Finding out you have a long-lost sister? Awesome. Finding out that you have a long-lost twin? Ten times more awesome. Tia and Tamera were polar opposites; Tia was the smart, honest and mature one while Tamera was funny, highly impulsive and always getting into trouble. But even though they disagreed, they were always there for each other and shared a wicked twin instinct.
Olive and Cal - Manifest
After the disappearance of Flight 828, Cal loses five years on his twin sister Olive. Though their twin bond isn't broken, the age gap does take a toll on their relationship, and sometimes, it becomes hard to accept for Cal who feels like he lost his best friend.
Brenda and Brandon - 90210
Brenda and Brandon Walsh experience a culture shock after moving from Minnesota to the glamorous Beverly Hills neighborhood in LA. Everyone had a fondness for Brandon, even his twin who once said he was her best friend. Their bond only strengthens as the series progresses becoming the most enduring friendship.
Petra and Anezka - Jane the Virgin
In a classic telenovela twist, Petra finds out she has a long lost twin sister, Anezka, who has lived her whole life in a Czech orphanage. Anezka isn't chic like Petra; she's clumsy, jumpy and eager to please people, especially Petra. Eventually, she ends up terrorizing her life by poisoning her and assuming her identity. You know, normal twin stuff.