William Henry Pratt (23 November 1887 – 2 February 1969), better known by his stage name Boris Karloff (), was an English actor who was primarily known for his roles in horror films. He portrayed Frankenstein's monster in Frankenstein (1931), Bride of Frankenstein (1935) and Son of Frankenstein (1939). He also appeared as Imhotep in The Mummy (1932). In non-horror roles, he is best known to modern audiences for narrating and as the voice of the Grinch in the animated television special of Dr. Seuss' How the Grinch Stole Christmas! (1966). For his contribution to film and television, Karloff was awarded two stars on the Hollywood Walk of Fame.