Vorpax was once the daughter of Queen Kreeya. She comes from a land in Outworld where Shao Kahn had conquered. She became a shadow priest later.
After Shao Kahn's defeat in the tournament, she took the form of Queen Sindel to lure Shao Kahn into Earthrealm. She killed Kitana and many other Earthrealm defenders during the invasion. Her fate is unknown.