Martin T. Sherman (born November 28, 1966) is an American actor, voice actor, voice director and writer who has starred in various movies and television shows as well as providing the voice for several video games. One of his most well-known roles was as Pac-Man in "Pac-Man World 3". He also voiced Thomas the Tank Engine from 2009 to 2015 in the British children's television series "Thomas & Friends". He also appeared on "Doctor Who". Sherman lives in the United Kingdom.