Princess Projectra
From superman.nu: Supermanica
Princess Projectra
A silver-haired teen royal from the planet Orando, Princess Projectra gains admission to the Legion of Super-Heroes because of her power of mentally casting extremely realistic psychic illusions -- illusions so powerful they are taken as real by most species in the universe. (Adv No. 346, Jul 1966: "One of Us is a Traitor!")