Doppel is a ladybug in the Underground Tavern. He masquerades as a Beetle (complete with "horn") as a result of the the queen's ban on Ladybug residents. He gives Team Snakemouth rewards for completing various bounties if they bring the Crystals they leave behind to him as proof. Kabbu doesn't see through Doppel's disguise (or, pretends to for legality's sake), whereas Leif quickly recognizes Doppel as a ladybug, much to Doppel's immediate shock.
- Doppel's name is a pun on the word doppelganger, referring to his disguise.