I'm gonna say uncle now, cause season 2 leads us to think it's his mom. <<< I could see that happening actually, it would make sense and could help him find answers on his galra heritage (info on his mom)
“Sometimes they screw up. Sometimes someone gets an ugly dose of fear toxin, and that someone has a painful right hook, but– Jason’s already died alone once before. Tim’s not gonna let his brother relive it alone again.