Havok

Havok is an American human mutant whose real name is Alexander “Alex” Summers – he’s the younger brother of the more well-known Cyclops AKA Scott Summers. He first appeared in Uncanny X-Men No. 54 in March of 1969 and has been a member of various X-teams, as well as an iteration of the Avengers.

His mutant powers include powerful energy blasts, the ability to absorb cosmic energy and, interestingly, complete immunity to his older brother Cyclops’ optic blasts.

He first joined the X-Men in The X-Men, vol. 1 #65 in 1970, but has gone on to represent other related teams including X-Factor and X-Factor Investigations. Like both Cannonball and Sunfire, he was recruited into the Avengers by Captain America himself after the Avengers vs. X-Men event – in his case in Uncanny Avengers #1 in October 2012.