The transdimensional being, played by Josette DiCarlo, whom the Xindi revere as a Guardian and who urges them on to destroy Earth in the third season of Enterprise.
The Sphere-Builder Woman is the principal member of her species seen in Enterprise, played by Josette DiCarlo. She appears from Azati Prime to Zero Hour, in the closing run of the third season.
Watching events from her own realm, she studies possible timelines and intervenes whenever the outcome turns against her people. The Xindi know her kind as the Guardians, and she uses that trust to persuade the Reptilian commander Dolim to seize the weapon and launch it without the Council's consent.
When Enterprise attacks the sphere network in Zero Hour she and others materialise aboard the ship to stop it, but the spheres collapse and the Sphere-Builders are driven back to their own dimension.