Mickey Maguire (born 20 June 1989) is the paranoid, aggressive, violent, homosexual yet homophobic member of the Maguire family. He had a brief and casual relationship with Ian just after his first appearance on the show, and continues to chase Ian, albeit irregularly. Unlike Ian, none of Mickey's family are aware of his homosexuality, despite several occasions when Mickey has come close to coming out to them.
The sixth series shows Mickey going to college to study film. In the same series, Mickey has revealed a talent as a writer of erotic stories. Mickey also has a crush on the staunchly heterosexual Carl Gallagher.