Barbara is Danny's older sister. She was intended to become the Ghost Rider but was gravely injured before Danny transformed. She is the person Danny trusts the most and was always there to talk to him whenever he was feeling down or needed guidance.  She gets attacked and wounded very early on before getting murdered by Danny's arch enemy but in this series, Danny will experience dream like visions of her when he's feeling lost. There's also a very interesting "What if?" storyline we may be exploring

She should sound just like a young woman would in her 20s...just don't do that valley girl voice please