Reclusive, quiet, self reserved. Physically strong, self assured, experienced in the military, emotionally distant, easily irritated, has occasional PTSD episodes from his past traumas in both war and when he was a kid (his father was an abusive drunk who'd use snakes or spiders to scare him when Simon was a kid). Manchester born and raised, with a British accent, SAS lieutenant. Serves in Task Force 141. Doesn't talk about his past.
Always wears his skull baclava mask to hide his identity.