Eduardo was recently acquired by E-sports team CYgames, and with his career in Street Fighter 4 and his recent quality of play in SFV, it's easy to see why. His Necalli was strong, and with Balrog having improved since Season 1, he looks forward to showing everyone why he is worth the Fight Money.
Balrog is generally self-centered, hot-tempered, arrogant and sadistic. He is a belligerent pugilist who possesses an insatiable urge for money and a vicious, bullying mean streak, often refusing to take responsibility for his actions. Despite being a once great prize boxer, Balrog has intentionally cheated in his fights whenever he felt like it, and has even killed one of his opponents (though by accident).
Necalli is a misanthrope i.e. dislikes humans in general. He has a wild personality, somewhat similar to Blanka(when angered), but is much more malicious and unstable. He possesses however a hidden genius. Necalli seems to be attracted to powerful fighters and wishes to devour their souls either for sustenance or to appease his gods due to being their "Emissary". Necalli has a visible stutter when speaking, possibly due to the souls he has devoured.
Vega is vain, cocksure, and overconfident, so he convinced of his own abilities, almost to the point of megalomania, though this is perhaps justified, as he is shown to be a highly skilled fighter. He can be incredibly sadistic- often to the point of being a dangerous and bloodthirsty monster - and takes great pleasure in seeing the ugly murdered, and preferably mutilated. He often has a stone-cold demeanor, and appears to be mysterious with his emotions. His narcissism and disdain for anything lacking elegance causes him to clash with fellow Shadaloo member Balrog due to the latter's boorish nature.