Sage is a character that appears in the Sonic the Hedgehog series. She is an artificial intelligence created by Dr. Eggman, which he used in an attempt to harness the technology of the Ancients during the Starfall Islands incident.  Sage resembles a young human girl. She possesses a slim body and limbs with white skin and a large, round head with a tall forehead. Notably, she possesses glowing red eyes and a red energy structure on the left side of her face.