Luthor

Luthor used to be a Guard dog for S. Wendell Palmino (AKA. Swindle). Savannah Drysdale is now his owner, although she calls him his housemate. In Showoff he was entered in lots of dog shows winning almost all of them. In Hideout, Swindle tries to get him back but the team hides him in their multiple summer camps, to keep him safe.