Stuart is the captain of the Pegasus-class assault carrier LMSD-76 Gray Phantom, and the commander of its Scarlet MS Team. He is responsible for overseeing the development and security of RX-78NT-1 Gundam "Alex". Stuart is shown to be committed to accomplishing his mission at any cost, and will not hesitate to instigate battles within a neutral space colony, nor dispatch his forces— including Gundam Alex's test pilot Christina Mackenzie— to fight in a populated city.
During the events of Mobile Suit Gundam Battlefield Record U.C. 0081 -The Wrath of Varuna-, Stuart is promoted to the rank of Lieutenant Colonel and command of the Pegasus-class assault carrier SCVA-72 Thoroughbred. He works in coordination with the Phantom Sweep Corps to hunt down Zeon Remnants.
War in the Pocket characters
|Earth Federation||Christina Mackenzie | Stuart | Richard Lumunba|
|Principality of Zeon||Killing | Von Helsing | Charlie | Rugens | Carioca|
|Cyclops Team||Bernard Wiseman | Steiner Hardy | Gabriel Ramirez Garcia | Mikhail Kaminsky | Andy Strauss|
|Civilians||Alfred Izuruha | Chay | Telcott | Dolores Hayes | Mrs. Mackenzie | Mr. Mackenzie | Michiko Izuruha | Ems Izuruha|