Julian Assange is ... Storm
As one of the powerful and fashionable of the X-Men mutants, Storm can control the weather -- summoning the wind and the rain simply by unfurling her designer leather cape. Assange has been known to cause a few storms of his own, summoning the media to his door with the release of more secret documents. Both have found themselves on the wrong side of the powers that be, and each is most effective when surrounded by other mutants and/or Wikipedians.
But mostly it's the hair.