Scorpion

Hanzo Hasashi, better known as Scorpion, is an on and off antagonist in the Mortal Kombat franchise, being the mascot of Netherrealm Studios as a demonic ninja.

History
Hanzo was once a fierce and dangerously fast ninja who protected his family and clan, the Shirai Ryu. However, the sadistic oni Quan Chi assaulted Hanzo's village and killed both him and his entire clan, all while disguised as the Lin Kuei assassin Sub-Zero. Quan Chi, as himself, then struck a deal with Hanzo as he resided in the Netherrealm/Hell; have the demonic powers necessary for getting revenge on Sub-Zero in exchange for Hanzo's immortal slavery. Hanzo accepted, and became the infamous hell-spawn known as Scorpion, who later got his revenge on Sub-Zero by murdering him.

Afterwards, Sub-Zero's younger brother, Kuai Liang, adopted his brother's alias and relentlessly hunted down Scorpion for slaughtering one of his only friends. Scorpion later realized that it was Quan Chi who killed his clan, became respectful rivals of the new Sub-Zero, and became the lich king of his resurrected Shirai Ryu army.