Square Enix has unveiled in the Shonen Jump magazine the name of the mysterious blond man that we saw in the latest Final Fantasy XIII videos, his name is Snow. Square Enix has also revealed 2 full names of Final Fantasy Versus XIII characters : Noctis Lucius Cheram「ノクティス・ルシス・チェラム」and Stella Nox Fulure「ステラ・ノックス・フルーレ」. The names are translated from Japanese, the official names may be slightly different.

Update 1 : Here are some more pics taken from V-Jump magazine.

Update 2 : Here are some better quality scans.

(Source : Shonen Jump / V-Jump)