Altair, or Military Uniform Princess is the Antagonist of Re Creators. Her goal is to summon Fictional Characters into reality to fight each other, collapsing reality. She wishes to do this to avenge her creator's death, which she blames on everyone. Altair's Personality is 90% cold silence and 10% rage.

Altair is very aware of the multiverse and is very able to influence it, pulling people across it. Whenever she plays her gun and sword like a violin, her holopsicon abilities can be activated.