I would suggest two roles:
Townie Journalist/photographer. Picks a player and takes his picture. Picture will include another person of the same class; for example, if he takes a picture of De-ting, the host will pick a person who is associated with him; so if De-ting is killed as say a townie, the person in the picture will also be a townie, same deal if it's mafia. IF we have more Mafia, it would ID two without letting everyone know who they associate with until one is dead.
Second role would be one or two Teamsters. There role would be to listen to the mob boss during daytime lynch votes, and try to stir up/inflate/deflate lynch votes against players. Could make it so they only can work every other day; so Day 1 and 2 would be out, but 1 and 3 or 1 and 4 would be acceptable, so long as there is space between the two.