Sean McNamara differed from his partner, Christian Troy. Sean held back alot of emotions. He lashed out alot at ppl, including Julia, Matt and Christian among others. I think Sean had alot of repressed rage, but he had morals and was the family man unlike his partner. He was an emotional wreck after discovering Matt of 17 yrs. wasnt his biological son. He was also terrified and feared when being attacked by the Carver. But unlike the others, Sean wasn't raped. He got lucky it was just a cut to the cheek above the nerve, so it left very litte scaring. Sean is my favorite character.