A very well built baby. Emphasis on the very. He's just a little larger than your average toddler. Boh is Yubaba 's son and is so spoiled that he throws tantrums whenever he doesn't get what he wants. His attitude problem is slightly fixed when his Auntie Zeniba turns him into a mouse, albeit a rather chubby one.
He dresses in a red apron with some Japanese writing on, and that's all he wears.