As a founding member of the X-Men, intelligently gifted Hank McCoy has been fighting for the peaceful coexistence of mutants and humans most of his life. Born with a physique, strength, and muscular structure greatly resembling an ape, Hank was known as Beast. Later, becoming a biophysicist at the Brand Corporation, Hank drank a serum he had created and further mutated himself into a blue furred, strong beast with fangs and claws. After spending many years as an Avenger, Beast joined the Defenders and, later with the founding members of the X-Men, X-Factor. Hank has always found himself returning to the X-Men, until longtime friend and leader, Cyclops, began to make decisions that Hank believed were questionable and he quit to join S.W.O.R.D. and the Secret Avengers. After the disagreement between Cyclops and Wolverine, Beast has returned to the School for Gifted Youngsters, now renamed the Jean Grey School for Higher Learning, as the Vice-Principal. With the Terrigen Mist killing mutants, as part of a truce between the Inhumans, he worked with them in hopes of finding a cure.