This is a very hard question... I can't decide between numerous ones so i'll say them all

Shining Force's Domingo


Suikoden's Flik


Lunar's Nash


Final Fantasy Tactics's Mustadio


Star Ocean's Bowman Jean


Legend of Zelda's Link

(I like N64 OoT's link best but couldn't get a good pic.)

Disgaea's Laharl


Other honorable mentions: Ghaleon, Vincent, Geno (SMRPG), Psycho Mantis, Samus, Knuckles.