What to Wear: Dress like a true gentleman from the 19th century, complete with a top hat. It might be hard to get the garb down, but you can mix and match from thrift stores, vintage shops, or Halloween stores. You'll have to figure out that second face, too. Perhaps a backwards mask would work?
How to Act: Like the Angel of Death from Asylum, Mordrake comes to bring souls to the other side, specifically those of freaks and misfits. Try to get people to tell you their secrets. Show them your "true" face.