Mogadon the Meathead is chief of the Meathead Tribe, close neighbors to the Hairy Hooligans. He has an eyepatch and a peg leg, and shares a sometimes vicious rivalry with Stoick the Vast, chief of the Hairy Hooligans.
In How to Train Your Dragon, Mogadon brings several of his tribe's young Vikings, including his son, Thuggory to Berk for the rite of passage. When the trainees fail to control their Dragons, Mogadon has no choice but to exile his own son. Soon after, a Seadragonus Giganticus Maximus washes upon Berk. Despite their efforts, the Vikings cannot defeat it. After Stoick's son, Hiccup, leads the other exiles in defeating the monster, they are all welcomed back into the fold, having proven themselves to be able to control their dragons.