Wyatt Gallagher is one of Frank Gallagher's brothers. His mother describes him as the 'baby', indicating that he is likely the youngest of her children.
He is first mentioned indirectly in Nana Gallagher Had an Affair, where Fiona mentions to her siblings their father has three brothers.
After Peggy's death in Parenthood, Wyatt was sent money by her along with Clayton and Jerry.
- He was the only uncle not visited by Lip and Ian.
- From the statement by his mother, he likely had no children even before he lost his testicles.
- It is unknown what terms he is on with his brothers, though Frank mentions that Wyatt and the others were the favorites.
- It is unknown how Wyatt reacted to Frank dying.
- Unlike his brothers, Wyatt seems to have been on good terms with his mother, due to her affectionate regard to him.
- It is also unknown what terms he is or was on with other relatives: his father, his grandmother,his late aunt, his Uncle George, and cousins Patrick, and Patrick's kids.
- Daddyz Girl (mentioned only)
- Parenthood (mentioned only)
- A Jailbird, Invalid, Martyr, Cutter, Retard, And Parasitic Twin (mentioned only)