Beast (Real name: Hank McCoy) is a young mutant, member of the original five X-Men, with genius-level intellect, superhuman agility and dexterity. He, along with the other four original X-Men were brought from the past by Beast to talk some sense into adult Cyclops about his mutant revolution. Young Beast was also brought to the present to aid adult Beast with his terminal condition. Beast thought the insight of his younger self could be useful in finding a way to cure himself.