Because I have no life and the entire soundtrack gets the muses in a tizzy...
Cast list is as follows: (I'll be happy to make multiple versions, though!)
Sweeney Todd: Naoya
Mrs. Lovett: Yako
Judge Turpin: God (of course), though I'd be willing to change this one to another character.
Beadle: No ideaaaa. Jazz? IDK
Pirelli: Flauros
Toby: Reno?
Lucy: Devil Survivor's MC, same as Turpin, though.
Anthony: No idea. Jophiel?
Johanna: No idea. Tentatively Tohru.
♥ If you have a request, find someone else more fitting besides the main ones (unless it's a request), or need the songs that'll be in the series, please let me know~!