Do you think iguin is a character we already saw or is he a character that hides great resemblance to another character?

Usually when you don't see a character 's face is because you already knows that character 's face. But since from the more important character we know, don't really look like they could be iguin, so i think he must have some very strong resemblance to another's character.

Either being qifrey's brother or coco's father, or just hiding >! Qifrey's eye!<