Known for his sadistic tendencies and cruelty, King Joffrey Baratheon terrorizes others with delight, making him one of the most despised characters on TV.
The matriarch of the Soprano family reveals her manipulative and ruthless nature, even ordering a hit on her own son in retaliation.
Kidnapped as an infant and raised in a hellish dimension, Connor returns as a vengeful teenager seeking retribution against his father.
Despite his friendly facade, Todd Alquist is a brutal enforcer for a White supremacist gang, engaging in drug distribution and ruthless killings.
Driven by his presidential ambitions, Frank Underwood stops at nothing, even resorting to homicide to further his political career.
Equally ambitious as her husband, Claire Underwood isn't above having people killed to protect herself and the Underwood legacy.
Initially appearing as a protective leader, The Governor reveals his sadistic nature, torturing and murdering to maintain his power.
Though not a typical villain, Will Schuester's cringe-worthy behaviors and inappropriate actions, such as his performance of La Cucaracha, make him disliked by some viewers.