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Didn't send it correctly, stupid key combinations.
Ple-Sen -- ?
Spear -- Mafia/Maniac
Mona -- ?, most likely peaceful
Winner -- peaceful
Thorium -- ?, most likely Mafia
Neyra Drake -- ?, most likely Mafia
Rainer -- peaceful
Ment -- Your humble servant
Arandor -- peaceful
Lord Mortulus -- ?, I don't know how he would play as a peaceful character. But so far, I don't see any differences from a Mafia Lord.
Drakkosha -- Mafia
Goomer -- Mafia
WishmasteR -- ?
Morning -- ?, most likely peaceful, if he really chose his role, then he is definitely peaceful.
In total, 6 peaceful players, and in my opinion, they are:
Mona, Winner, Rainer, me, Arandor, Morning -- that's a full set. Everyone else can be executed :D