We're not discussing the old game, but rather ideas for new roles if we have enough people to fill them.
I still would like the idea of another form of killer, one that forces someone else to kill (like when we had the drug dealer idea the first time). I was thinking that it would be kind-of like the nurse that itachi said.
Call the character "two face" or "cursed assistant" or something like that. The 50/50 chance would be that if two-face chose to "assist" someone that turned out to be a killer that night (Mafioso, reaper, vigilante), then the killer would get to kill two people. However, if "two face" chose someone who happened to be an innocent, then that innocent would be saved. But either way the identity of two-face would be revealed to the person they chose to assist. The kicker would be that the character must choose someone to assist every knight, and never the same person twice in a row. And even though the assisted person gets to know two-face's identity, they won't be very likely to call them out because they were assisted in their goals.