Unless you’ve read the books you won’t know Wylan, but he’s a wonderful character: the regular guy surrounded by the thieves. His outrage or confusion or ignorance stands in for us the audience, and he’s the vehicle for explanations. Over time we see his traumas, and we develop a deeper affection for and understanding of him. Other characters have pain from tragedy: parental death, slavery. His pain is inflicted by his father, and it’s unbelievably cruel.
My first instinct is to place him as a Head Type. He’s not physical, and he’s not socially adept. But wait. What about a Two? He’s incredibly awkward with his father, even before the abuse starts, and the rejection forms a lot of his character. Are these the actions of a tender heart that’s been damaged? Are his bombs a kind of Two collection?
He’s not a Seven. The underworld isn’t intriguing enough to him for that. He’s not worried or hesitant enough to be a Six. And the odds that he’s a Five when Kaz is one are too long. They don’t have the nerdy impersonal relationship Fives would have.
His gentle sweetness, and his perseverance in the face of deep betrayal, lead me to Two.