Bosyn was found by Cap and raised — first as something of a ship's pet, then as a kid, then as a full member of the crew. He's made the Copper Barnacle his home and Saltmarsh his town, and he knows it well. He shapeshifts into a mouse when the situation calls for it, which it does more often than you'd think. He has a friend named Bobby, a street urchin with good ears and a long memory for gossip, who has proven useful on more than one occasion.