Julian Dennison is a film child actor from New Zealand, best known for his roles as Ricky Baker in Hunt for the Wilderpeople, the highest-grossing New Zealand film in history, and as Russell Collins a.k.a. "Firefist" in Deadpool 2.
A Multiversal parasite known as Mother is chasing after Billy trying to steal his powers, but America Chavez takes him and Tommy to Earth-616 before she could take them. America then decides to put together a team to stand against Mother which later gets named the Young Avengers.
