Who is the guy in the game cover?

[Haettensch]

This guy:

Also, its possible get his armor? If yes,what is the name and how it looks ingame?

[Estellios]

That is Gaius van Baelsar and he's the villain of the main story.

Can't get his armor.

[Enkidoh]

Estellios is right, and don't worry, you'll meet him and his Garlean flunkies soon enough.

If you can't wait, this is what FF Wiki has to say about the Legatus of the XIVth Legion (note: spoilers abound): http://finalfantasy.wikia.com/wiki/Gaius_Van_Baelsar

[Haettensch]

Thanks for the answer :3

i still want the armor ç.ç

[Yumi_umi]

Lol i remember when i was like who's dat as in game he has a golden tint with some red cloth etc.
When i saw the cover i was like ooooooo must be blackish or something ( similar to judge garbranths armour in ffxii )