Which actor played Dr. Mark Sloan in the medical TV series "Diagnosis: Murder"?

The famed actor who played Dr. Mark Sloan in the 1993–2001 medical TV series "Diagnosis: Murder" was Dick Van Dyke. As Dr. Mark Sloan, Van Dyke is chief of Internal Medicine at Community General Hospital, and he is often a consultant to his local police department. When he's drawn into a case, he combines sleuthing and medicine to solve the crime. The crime is usually one his detective son, Steve Sloan (Barry Van Dyke) is working on as a member of the police department. Dr. Sloan's medical colleagues, including doctors Amanda Bentley, Jack Stewart and Jesse Travis, are also frequently drawn into his criminal investigations.

Richard Wayne Van Dyke (aka Dick Van Dyke) was born December 13, 1925 in Missouri. He is an American actor, comedian, writer, singer, producer, and dancer, whose award-winning professional acting career has spanned more than seven decades. He is well known for his work on the CBS TV sitcom "The Dick Van Dyke Show", which ran from 1961 to 1966. He also gained significant popularity for film roles in "Bye Bye Birdie" (1963), "Mary Poppins" (1964), and "Chitty Chitty Bang Bang" (1968).

Some of his other prominent acting jobs include roles in "The Comic" (1969), "Dick Tracy" (1990), "Curious George" (2006), "Night at the Museum" (2006), "Night at the Museum: Secret of the Tomb" (2014), and "Mary Poppins Returns" (2018). Regarding popular TV roles, they include: "The New Dick Van Dyke Show" (1971–74), "Diagnosis: Murder", and "Murder 101" (2006–08).