Scorpion's biggest rival and comrade, the original Sub-Zero (the current Sub-Zero is this character's younger brother) is rumoured to have descended a race of Outworld cryomancers who can control the element of ice.
A member of the Secret Forces unit and leader of the Outworld Investigation Agency, Lieutenant Sonya Blade is the mortal enemy of Kano (he killed her former partner and twin brother Daniel).
He is a native of the Kuatan realm of Outworld.
He is originally from the Earthrealm, but escaped to the Outworld many millennia ago.
His lifelong quest is to free his "people" from the tyrannical clutches of the Outworld (his home world is Zaterra, annexed by Shao Kahn), and his absolute dedication to this goal leads to fits of insanity at times.