Old Man Skoo

Old Man Skoo was a person briefly mentioned in Paper Mario: The Thousand-Year Door who was gobbled up by Hooktail two villages over from Petalburg. It's unknown if he managed to escape from Hooktail's stomach when Hooktail was defeated by Mario, or if he was destroyed before then. It is also unknown what species Old Man Skoo was during his lifetime, although the instance of "koo" in his name may suggest that he was a Koopa. (If this is so, then it is further possible that he was one of the Dull Bones who attacked Mario while he was adventuring in Hooktail Castle.)