Abigail is a medium height young woman with a slender, petite build. She has brown skin, short brown hair, and striking purple eyes. After Episode 11, she grows her hair longer. Her design was inspired by young Natalie Portman and Halle Berry. Her usual outfit includes a yellow T shirt, white low rise shorts, a red cap, and white sneakers, though her attire changes throughout the different arcs of the series.

Abigail is often cold, blunt, and sharply honest. Her experiences as a child soldier in Baghdad left her emotionally scarred, and she occasionally struggles with suicidal thoughts rooted in her trauma. Although she tends to distance herself from others, she is capable of deep compassion and loyalty. She is highly skilled in combat and acting, and she approaches missions with unwavering focus and a readiness to do whatever is necessary.

Abigail was raised by loving and supportive parents and discovered her talent for ballet at a young age. In March 2003, she won a gold medal in a ballet competition, but as she left the venue with her parents, Baghdad came under heavy air raid. Her parents were likely killed in the bombing. She was later taken in by a militant group and forced into life as a child soldier. During an assault on a Western military bunker, she was injured by a grenade blast and collapsed as the battle continued around her. These memories remain a constant source of trauma and continue to influence her thoughts and behavior in the present.