Gabe Ugliano is Percy Jackson's lazy and abusive scumbag of a stepfather in Percy Jackson and the Olympians: The Lightning Thief. He is the tertiary antagonist of the film.
He is portrayed by Joe Pantoliano, who also portrays Cypher.
He is lazy and fat and tells Percy's mother to do everything for him, like for example, get him his beer out of the fridge instead of doing it himself. After the attack on Percy at the museum, Percy came home to talk to his mother about what happened, but Gabe rudely interrupted by remarking that "she was servicing me and my friends". Percy retaliated by calling him a "bald-headed freak", angering him and making him attack Percy, but his friend and protector named Grover stopped him and knocked him out and the three escaped.
Later, the disappearance of Percy, Grover and Percy's mother reached out on TV and Gabe told a lot of lies about what happened, saying that "due to the fact that Percy became an alcoholic and drug dealer, he knocked out Gabe and kidnapped his mother and his friend". It's unknown whether the authorities believed his story or not.
At the end of the film, Percy's mother kicked Gabe out. He goes to the fridge, but there is a paper note and a lock on it by Percy saying "do not open". Gabe angrily ignores it, smashes the fridge open and finds Medusa's severed head in there which kills Gabe by turning him into a statue when Gabe accidentally looked into the eyes.