Dr. Thornton (Played by Peter Murphy) was a Collins family physician in 1795. When Victoria Winters arrived at Collinwood from the year 1968, Naomi wanted to send for Dr. Thornton due to the girl's strange behavior (366). He treated Barnabas after Angelique Bouchard had placed choking spell on her former lover. Dr. Thornton was unable to determine the cause of the problem (371).