Sergeant A. Sunday is a trooper who was part of Colonel Johnny Rico's unit. Sunday was stationed on Roku San before. During the Battle of Roku San, she was in the command bunker and got trapped beneath the debris. However, she was able to survive. Sunday was later assigned to the Marauder Team by Colonel Rico. Because the Marauder's systems will be hard wired into their nervous systems, they had to strip for scanning. As they prepare to scan, Skinner didn't take off his underwear and when he did, Sunday making a fun on him while J. Kirby laughed about it.