She-ra is the twin sister of He-man. She and He-man were separated at birth. This was an act to protect her from Skeletor.
Years later, She-ra came to the aid the Great Rebellion, a group of soldiers who fought against Hordak. However, when his forces and Skeletor's forces joined up, only He-man and She-ra survived.
She-ra is voiced by Melendy Britt.
Powers
Grayskull Power Shield of Light - summons a protective barrier of light energy
Grayskull Power Supreme Wave - with help from He-man, She-ra unleashes a very powerful wave of the power of Castle Grayskull.