From Wikipedia, the free encyclopedia. Lionel Atwill (1 March 1885 – 22 April 1946) was an English stage and film actor born in Croydon, London, England. He studied architecture before his stage debut at the Garrick Theatre, London in 1904. He become a star in Broadway theatre by 1918, and made his screen debut in 1919. He acted on the stage in Australia but was most famous for his U.S. horror roles in the 1930s. His two most memorable parts were as the crazed, disfigured sculptor in Mystery of the Wax Museum (Warner Brothers, 1933), and as Inspector Krogh in Son of Frankenstein (1939), memorably sent up by Kenneth Mars in Mel Brookss Young Frankenstein (1974). When he was not cast in macabre roles, Atwill often appeared in the 1930s as righteous-minded authority figures. For example, in 1937s less memorable The Wrong Road for RKO, investigator Atwill persuades a young, bank-robbing ingenue played by Helen Mack and her boyfriend Richard Cromwell to return their ill-gotten $100,000 and give up a life of crime. Two of Atwills other notable non-horror roles were opposite his contemporary Basil Rathbone in films featuring Arthur Conan Doyles character Sherlock Holmes, including a role as Dr. James Mortimer in 20th Century Foxs 1939 film rendition of the Conan Doyle novel The Hound of the Baskervilles, and the 1943 Universal Studios film Sherlock Holmes and the Secret Weapon, in which he played Holmes archenemy and super-villain, Professor Moriarty.