This should add a twist. 
Name: Alastair Gremory
Race: Devil
Age: since the beginning of time. 
Appearance: http://images6.fanpop.com/image/photos/35500000/Luka-3-anime-demons-35592478-1024-576.jpg
Real appearance: [img=http://wallpapersuzie.com/thumbnails/detail/20130611/movies%20demons%20cgi%20fantasy%20art%20anime%20dragon%20age%20dawn%20of%20the%20seeker_wallpapersuzie.com_26.jpg]
Personality: Lives making deals is always true to his word but is very mischievous and evil. 
Bio: After the original lucifer was killed a certain devil took it upon himself to keep control and not let every demon run around earth killing everything, Alastair is commonly thought to have brought necromancy to the humans because he couldn't dare seeing them die out. He's never been much of a fighter though it never really appealed to him. (Not a hostile chacter)
Abilities/ special: necromancy, control of fire, summon demons, and your practical devils abilities.