Bo Hweemuth is supporting character in The Epic Tales of Captain Underpants.
Bo first appears in "The Costly Conundrum of the Calamitous Claylossus", where he is revealed to be rumored as a feared and isolated bully. George and Harold are skeptical about this and decide to find a way to draw him out. They are proven right when they see the figurines of all their enemies and decide to hire him to make toys for their comics. Bo is seen in later episodes as a recurring ally.
In "The Confounding Concoction of the Crooked Combotato". Bo is the only person willing to eat Stanley's potato. When the game starts they time every story by seeing how long it takes to eat a potato. Later on, hey also use the time it takes him to eat a finger potato as a timer for Stanley to think of ideas. He gets sick after Gooch's story and so they have to have Melvin go. At the very end of the episode, Bo is feeling better and the light shines upon him as he is about to go however Erica interrupts him with Mr. Krupp.
Bo is very large, has brown hair that covers the upper-half of his head, and has lightly tanned skin. He mainly wears an orange woolly hat, a velvet shirt, blue jeans, and a purple jacket.
Despite looking tough and scary, Bo is actually a talented, good-hearted sculptor who wishes to have friends. He was initially lonely because of all the rumors that painted him as a powerful, scary monster which made everyone afraid of him. Luckily, George and Harold took the time to know him. He has been a class favorite ever since. He is good friends with everyone in the school, except for Melvin.
- He seems to be crushing on Other Sophie in season three.
- He is the second child to be turned into a monster, the first one being Jessica.
- He can play the banjo, make stop motion, has some mechanical knowledge, as well as the piano, and is a talented ice sculptor as well as seen in season three.
- He's a huge fan of Halloween.
- He is 5 foot tall.
- His name is a pun on "Behemoth."