Percival was The Stink Bug's "not so evil" intern who first appeared in Law and Odor. He is a good-natured pig who speaks with a slight Southern accent. It turned out he mistakenly applied for the job without reading the description. His recurring suggestions of cleanliness, caution behind the steering wheel, and his failure to do evil leads to him being fired near the end of the episode. At the very end, he was hired for an internship at T.U.F.F. HQ. It is unknown if he will make another appearance. He is voiced by Will Matthews.
|Turbo Undercover Fighting Force|
| Dudley Puppy • Kitty Katswell • Keswick • The Chief |
Other Agents: Agent Amoeba • Agent Bacon • Bobby • Agent Bossy • Agent Bull • George Looney • Agent Goldfish • Agent Groundhog • Agent Guinea Pig • Agent Hammerhead • Agent Jumbo • Agent Kid • KIL-R • Agent Moby • Nocturnal T.U.F.F. Agents • Agent Nutz • Percival • Agent Rodentski • Agent Scarecrow • Agent Seabiscuit • Agent Sea Cucumber • Agent Skunk • Scary Jimmy • Sally Mander • Tammy • T.U.F.F. Troopers