Dr. Simon Locke was a Canadian medical drama that was syndicated to television stations in the United States from 1971 to 1974 through the sponsorship of Colgate-Palmolive. The series was initially a medical drama that originated from the fictional rural town of Dixon Mills, where a young physician, Dr. Simon Locke, arrived in town to assist veteran physician Dr. Andrew Sellers. The plot lines were more fitting for a big city medical drama, including a typhoid epidemic, child abuse, and even a murder. The series co-starred Len Birman as Sheriff Dan Palmer and Nuala Fitzgerald as Nurse Louise Wynn. In 1972, Albertson left the series on unfavorable terms, and the series was renamed as Police Surgeon, where Dr. Locke moved back to the city and worked for the police department's emergency unit, where he assists the cops in solving crimes that require medical research. The reworked series also starred Larry D. Mann as Locke's superior, Lieutenant Jack Gordon, with Len Birman returning in his role, now as Lieutenant Dan Palmer. The series also featured guest stars such as William Shatner, Leslie Nielsen, Donald Pleasence, and Keenan Wynn.