Josh Robert Thompson (born March 11, 1975) is an American actor, voice actor, impressionist and comedian. Thompson is known for his celebrity impressions, including Robert De Niro, Arnold Schwarzenegger, Wilford Brimley, Willie Nelson, Sylvester Stallone, Matthew McConaughey and Morgan Freeman. He is best known for his work on The Late Late Show with Craig Ferguson, providing the voice of robot skeleton Geoff Peterson along with numerous characters and impersonations.