Bartholomew has tanned skin, brown eyes and graying hair. He wears a grey pinstriped blazer over a white button-down shirt and a blue tie.
Claire is his daughter.
Bartholomew is Antoine's brother.
He seems to care for Mallory. When she almost drowned in Book 3 to rescue her daughter and Jess from the storm, he was worried about her condition. She invited him to Main Character's housewarming party together with his brother and daughter.