This might sound crazy, but I swear I'm serious.
The company Illusion is well known for their infamous rape fantasy games, no question, but they also make some of the best character creators I've ever seen.
The game Honey Select (including it's recent official English version) has such a well done character creator I've seen people spend more time making characters with it then doing anything else in that game. Some don't give three shits about the sex aspect (and you don't even have to touch that part of the game if you don't wish to), it's all about modding the character creator to produce all sorts of fictional and real life people.
Given it was made in Unity, modding the engine is not overly hard at all, and if you look around the internet, the amount of characters they managed to reproduce in that game engine with such a high degree of fidelity to their source is rather mind blowing.