Necalli is misanthropic, sinister, unrelenting, vicious, ominous and feral. He also 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.