Here is a list of the characters, from Black Butler, I would like to see turned into playertypes.
Sebastian Michaelis & Ciel Phantomhive. (These two are seen together most of the time and they are the main characters in the anime.)
Grell Sutcliff & William T. Spears. (Maybe Ronald Knox or the Undertaker. Although the Undertaker was seen more.)
Baldroy, Meyrin, & Finnian. (The three Phantomhive servants, maybe.)
There are more characters but I'm just listing the characters that were seen more in the anime.
The first four characters is what I would like to see the most. Although Grell is the main one I would like imo.