By what name is the Marvel mutant Alex Summers better known? Alex Summers is better known as Havok.
Havok is a Marvel Comics mutant and the younger brother of Scott Summers, better known as Cyclops. He first appeared in The X-Men #54 in 1969, initially as Alex Summers before adopting his superhero codename.
Havok’s mutant ability is to absorb cosmic energy and release it as powerful plasma blasts. His distinctive containment suit helps him control and focus that energy. He has been associated with the X-Men, X-Factor, the Starjammers and the Avengers Unity Squad.
Readers sometimes confuse Havok with Cyclops because both are Summers brothers and both project energy from their bodies. Cyclops fires controlled optic-force beams, while Havok absorbs surrounding energy and releases plasma. Havok was portrayed by Lucas Till in several X-Men films, including X-Men: First Class.