From "Breaking Bad" to "Charmed," these shows didn't pull their punches when it came to doing away with their leads.Sean Bean as Ned Stark in 'Game of Thrones'Credit: HBOOn the best TV shows, no one is safe.One recent example is HBO's Euphoria. The finale, which aired in May 2026, shocked fans by doing the unthinkable: killing off its lead character.In season 3's closing stretch, Rue Bennett (Zendaya) succumbs to an accidental fentanyl overdose.…