Jason's foremost characteristic was his loyalty to his friends. A serious young man with a moderate sense of humor, Jason was a born hero who hated cruelty and injustice. Though a natural leader, he could be plagued by doubt and criticizes himself whenever he made an error. Jason had several personality traits like his natural leadership and his sense of justice. As a Roman, though, he could also be merciless and feral with anger issues, as he was raised by wolves.