He's a millionaire and dog breeder, famous for his Lithuanian Wolfhounds. He's also a notorious thief. He appeared in "Rufus in Show" stealing a large diamond in a museum. Kim and Ron used his annuel dog show with Rufus as an entrant as cover for recovering the diamond. Jones is rather a competent villain, not making the Chliche mistake of leaving Kim and Ron to perish in the trap, instead staying to watch and make sure they die. Kim tells him that he is breaking a major villain tradition. He also talks funny because he suffered a hellium gas accident, that's where he gets the name Falsetto.