DCI John Barnaby is the much younger cousin and successor to DCI Tom Barnaby (John Nettles) in the English crime drama Midsomer Murders. He is played by Neil Dudgeon. Barnaby transferred from Brighton to Midsomer's Causton CID to replace his older cousin, Chief Inspector Tom Barnaby, when Barnaby retired. He has a degree in Psychology, which earned him some ribbing from DS Jones when he first arrived; however, despite a rocky start, the two make a formidable team. Barnaby lives in a large country cottage with his wife Sarah and their dog Sykes. He first makes a guest appearance in the series 13 episode, "The Sword of Guillaume" before taking over in the series 14 premiere, "Death in the Slow Lane." Dudgeon actually made his first appearance on the show not as John Barnaby, but as womanising gardener Daniel Bolt in the series 4 opener "Garden of Death".