Pendergrass is the most laid-back and easy-going member of the IJA-µ and the jokester of the group. While he is a gifted and accomplished pilot and soldier, he has something of an aversion to violence and prefers to settle matters peacefully if at all possible. He loves practical jokes and his favorite target is Sarge, mostly because he knows that Roosevelt lacks a sense of humor. Pendergrass is a vegetarian and spends most of his downtime playing videogames and eating junk food.
With the rank of Sergeant Major, the gruff and irritable Roosevelt (commonly called Sarge) is technically the lowest ranking officer (and the only non-commissioned one) in the IJA-µ, but in practice he essentially serves as their leader due to Kennedy’s general unreliability. Pendergrass and Riley respect his capabilities and experience despite their technically outranking him, while Kennedy doesn’t realize that the others look to Sarge instead of him for guidance. He also serves the rank of Sergeant-at-arms to Colonel Goose and she considers him a trusted advisor, generally addressing him in briefings on equal (or greater) terms that Kennedy, who is technically in charge of the TEDD-IJAµ.