Alec Trevelyan

Alec Trevelyan, formerly known as  006 and now known as Janus, is an ex-MI6 agent turned cyber-terrorist and the hidden main antagonist in the 1995 film GoldenEye. Trevelyan is unique amongst James Bond's adversaries in that not only was he a former MI6 agent, but also Bond's best friend.

He was portrayed by Sean Bean.