From Wikipedia, the free encyclopedia David Joseph Manners (born Rauff de Ryther Duan _[some other sources spell Daun]_ Acklom, April 30, 1900 – December 23, 1998) was a Canadian-American actor who played John Harker in Todd Browning's 1931 horror classic Dracula. The following year he portrayed the archaeologist Frank Whemple in another pre-Code thriller by Universal Pictures, The Mummy. Manners abandoned his film career in 1936, and his theatrical career seventeen years later.