Harry Hook is the secondary antagonist, who appears in the sequel Descendants 2 and the tertiary antagonist turned supporting character/anti-hero in Descendants 3. He is the son of Captain Hook and the brother of CJ and Harriet Hook. He is the first mate of Uma's pirate crew. Harry is Uma's oldest and closest friend. Having been described as defending Uma from bullying and harassment. Harry is sneaky, wild, unpredictable (which can be perceived as crazy), rude, and evil but has a heart. His hear