Kaylie's uncle

Kaylie Lamott's uncle lives in Florida. His niece and her mother went to stay with him when their house was being rebuilt.

Arthur

 * "Shelter from the Storm"

Trivia

 * It's never explained how he's Kaylie's uncle, like if he's biologically-related to Kaylie (which would mean that he's the brother of either Kaylie's mother or whoever Kaylie's father is) or if he's Kaylie's uncle-thru-marriage (which would mean that he's married to the sibling of one of Kaylie's parents).