Extremely little is known about Rachel Blake. She seems to have a strong personal vendetta against The Hanso Foundation, but the reasons for it remains a mystery. In an audio file, she mentions that her mother is dead, and that is the reason why she is fighting against the Hanso Foundation. It was revealed at the end of the Lost Experience that she is in fact the daughter of Alvar Hanso, and that the Hanso Foundation provided a trust fund to her in secret while she was growing up with her mother.