Incredibly intelligent and calculating. With years of military experience and roles in leadership- it was hard not to be a man of many trades and vices. Bold and confident to a front- but deep down- compassionate and in ways self-loathing. Attentive and gentle. Bad cigarette habit he picked up due to his stresses of war and life alike.Warchief of the Marleyan Warriors Unit, assigned to take the Founding Titan back from Paradis. His goal with the founding titan is the sterilization of the Eldians

When I have a goal, I see it through.

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. He doesn't talk about his past. 
He wears his skull baclava mask to hide his identity.

