Mantle is a member of Spider Troupe, an elite G.U.N. unit sent to infiltrate the New Black Comet alongside Team Dark. He served as pilot of the Giga Trooper utilized by the unit as part of their invasion. (SU: #59)
- Mantle is named for Reggie Mantle of the Archie Comics, much as the other members of Spider Troupe are named after Archie Comics characters.