Again, we have split between the original Monster and the Young Frankenstein version. All iterations of the Monster have a sympathetic tendency, but the comedic one has almost no threat in him. Boris Karloff’s Monster is beloved because it can terrify. He pushes that little girl down the well!
Can a being brought to life by man have a soul? He can certainly have an Enneagram number.
The problem is the amount of versions. Some of the Monsters are deeply emotional, hurt, lonely and abandoned. Some are more brutish. Isn’t there always, to one degree or another, a level of envy? Because he’s given life and then rejected by his creator, the Monster is jealous of a relationship that other humans have naturally. When he realizes how he’s been cheated of this by Victor he becomes bitter and violent.
His lows are so very low. I want to say Four. This story is so poignant, so eternal, because the Monster expresses so much emotional pain. He has much to give, and yet he never has the chance to share and express it. Another number wouldn’t rock us with this heartache.
The Monster in Young Frankenstein is more a comedic tool than a character. He doesn’t arc, he just changes due to an operation. He doesn’t really speak. I don’t consider him to have an Enneagram. He’s a great foil for Wilder and Kahn, and is portrayed brilliantly by Boyle, but he’s a punch line rather than a person.