Mother Celestialsapien

The Mother Celestialsapien is the mother of the baby Celestialsapien and lives in the Forge of Creation.

Ultimate Aggregor arrived in her hands and planned to absorb the powers of her child. The gang attacked Ultimate Aggregor, but Ultimate Aggregor won. Young Ben told Kevin to absorb the Omnitrix, but he absorbed the Ultimatrix instead and defeated Ultimate Aggregor.

It was confirmed by Dwayne that the Mother Celestialsapien was aware that Ben, Gwen, Kevin and Aggregor were in her hands, and she was debating on what to do with them.