Mark Slaughter (born Mark Allen Slaughter, July 4, 1964, Las Vegas, Nevada) is an American singer and musician. He is one of the founders of hard rock band Slaughter, and he also has worked as a voice actor and composer. He has a family relation to Pantera's Rex Brown. His vocal range without falsetto spans from the low C, or C2, up to the D above soprano C, or D6.