I'm adding these in the wrong order so that anybody who doesn't want spoiled will see the promos from the episodes that have already aired first and know to look no further =)
The official 音楽 video for the song remains, によって Jed Whedon and Maurissa Tancharoen, made for the Dollhouse episode Epitaph one. Starring Maurissa Tancharoen and Fran Kranz (Topher)
