 SPOILER: Before the surgery, the members of the Black Dragon Society  are played by six Chinese actors. After the surgery, they are played  by the same six gentlemen who play the six businessmen later (i.e.,  earlier in the film). One of the Chinese actors is Keye Luke (qv),  in a bit role. He is the man on whose face Bela Lugosi (qv)s  character is seen operating.