*Notice* -The following article contains spoilers.
Carl is a café customer who makes his first appearance at level 16. He is an antiquarian and the person Margaret sells the player's stored items to. He is Margaret's husband and partner in crime. They have been married for at least 50 years although it is unclear whether they are still in a relationship.
Carl practices savate boxing and seems to be quite good at it as he was able to take down four men on his own.
Like Margaret, Carl can buy items the player has in their storehouse. However, he offers to buy 3 pieces a day instead of just one, and for better prices.