Thora is a Hairy Hooligan that is mentioned briefly in the Comic, "Dangers of the Deep".
In the Comic, "Dangers of the Deep", fishermen are turning up with little to no fish for the Hairy Hooligan Tribe to eat. Upset villagers gather around Chief Stoick demanding action. One bald and mustached fellow decries "What do I tell Thora? That woman can kill with a skillet pan at ten paces!". Thora is presumably his wife.
Later in the Comic, the fish shortage is revealed to be caused by sabotage at the Mouth of Fafnir, causing fish to be unable to migrate into Berk's waters.
- The name "Thora" is derived from the name "Thor", a Norse God.