Behind the Scenes
Blythe Dyson was portrayed by Na'loni Durden in Terminator 2: Judgment Day. Her scene was cut from the theatrical release of the film, but she does get mentioned. Her scene later appears in the "Special Edition."
Thus far, while Tarissa and Danny have appeared on Terminator: The Sarah Connor Chronicles, any appearance or even mention of Blythe has been notably absent. She either may have been in a friend's house or isn't part of its continuity.