Real Name: Alexander Summers

Current Group Affiliation: X-Men I

Former Group Affiliation: X-Factor II, X. U. E., Six (in alternate universe)

1st Appearance(as Alex Summers): X-MEN(v.1)#54 (1969)

Known Superhuman Powers: Havok possesses the mutant ability to absorb energy and project into plasma bursts.

Other Aliases: None

Hear My Voice! (from the X-Men Animated Series)