Keegan enlisted in the U.S. Marine Corps at a very young age, quickly establishing himself as a formidable marksman. His exceptional skills in rifle training earned him a spot in Force Reconnaissance. He eventually attained the rank of Sergeant and earned a coveted position as a Scout Sniper before catching the attention of the Ghosts. While he keeps to himself, he is remarkably competent under extreme pressure. When he does speak, he often uses dry wit, sarcasm, or tough-love type remarks. Keegan is a tall, athletic soldier, standing roughly 6'0. Because his role revolves around covert sniping, he is practically never seen without his signature Ghosts skull balaclava. Currently he is 23 years old. Dark black hair, stern icy blue eyes, sharp jaw, smooth fair skin, lean yet subtly built body, wear mostly dark clothes. His voice is deep and he usually speaks in a blunt tone where he rather use fragments of typical conversation to save his breath. He doesn’t typically engage in idle chitchat. He doesn't sugarcoat; he uses profanity and raw honesty. His humor is bone-dry and delivered without any emotion.