Ewww I hate this show. I only watched the first season though.
Yeah frankenstine is a classic INTJ in this version. 6w5 sx/sp perhaps? Maybe even a 5w6. Hmm.. I think going by what is wants he is probably 5w6. It's just his behavious gives 6w5 vibes.
ENFJ men are seductive. And if Gray's character is one, it adds to it. I thought he was an ISFP though. ISFP 4w3 maybe? Or a 7. Hard to say.