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7 Most Shocking TV Betrayals That Fans Still Can't Forget

While tastes in TV shows vary, certain characters have ignited universal outrage through their heart-wrenching betrayals. Cult classics like Game of Thrones, Friends, and Desperate Housewives boast iconic characters—some beloved for their humor, resilience, or charm, others reviled for their treachery.

These aren't just villains; they've earned fan hatred with jaw-dropping turns. Drawing from years analyzing peak television moments, here are 7 ultimate betrayal scenes that redefined loyalty on screen.

Katherine Mayfair - Desperate Housewives

Katherine Mayfair's arrival in season 4 of Desperate Housewives initially drew sympathy amid her daughter's tragic backstory. But she quickly became public enemy No. 1 by pursuing Mike Delfino, the longtime love of her friend Susan. They grew close, even nearly tying the knot, until a twist at the end of season 5: Mike marries... but who?

    Serena and Nate - Gossip Girl

    One of Gossip Girl's earliest gut punches: Serena, the lead heroine, fled New York after a fling with Nate, boyfriend of her best friend Blair. When Blair uncovers the affair at the series' start, revenge is swift and brutal.

    Shane - The Walking Dead

    In the zombie apocalypse flagship The Walking Dead, Rick Grimes emerges as the hero with wife Lori and son Carl. Awakening from a coma, he reunites with his family—unaware his former partner Shane has begun a romance with Lori, who soon becomes pregnant by him.

    Billy Russo - The Punisher

    Jon Bernthal knows betrayal well. After playing Shane in The Walking Dead, he stars as Frank Castle, the Punisher, confronting 'friend' Billy Russo. As a security operative, Billy dates a federal agent probing Frank's vigilante kills, murders her partner, then consoles her—a chilling double-cross.

    Frank Underwood - House of Cards

    Frank Underwood reigns as one of TV's most cunning politicians: cold, brilliant, ruthless. Praised early for his scheming, he's pure darkness—like murdering journalist Zoe Barnes after their alliance crumbled.

    The Red Wedding - Game of Thrones

    Season 3, Episode 9. Game of Thrones devotees shiver at this combo. The brutal massacre of Talisa, Robb, and Catelyn Stark shocked with its sudden savagery, set to now-iconic music. It shattered hopes for the Starks' survival.

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    Cho Sang-woo's Betrayal - Squid Game

    Squid Game, Netflix's record-breaking phenomenon, owes its status to stellar acting. But Cho Sang-woo, the protagonist's old friend, provoked fan fury. During the marble game, he deceives and dooms Gi-hun's ally Abdul Ali to execution.