Sean was Meghan Ranger's brother before Meghan died. He was purged five years before Meghan. He is a current Artimean. He was one of the only ones who knew about Eva Fathom being a spy for Artime. He grieves Meghan's death deeply. His parents were happy to see him after Arteme was exposed, but they held a bit of a grudge toward his sister since she was their second Unwanted child. Seth Fathom (Carina Fathom's son) thinks of Sean as a father figure, which pleases Sean, since he is Carina Fathom's boyfriend.
Sean has reddish brown hair, green eyes, pale skin, and freckles.