Kevin Wagner Murphy (born November 3, 1956) is an American actor and writer best known as the voice and puppeteer of Tom Servo on the Peabody Award-winning comedy series Mystery Science Theater 3000.

During his year at the movies, Murphy samples theatres from small-town boxes to urban megaplexes, attempts (and rejects) a theatre-food diet, suffers a kidney stone, visits both the Sundance and Cannes film festivals, sneaks Thanksgiving dinner into a showing of Monsters, Inc., and records all of these experiences, both good and bad.

During a 2008 interview, Hodgson was asked if Murphy harbored any sort of animosity towards him or the Cinematic Titanic members; he responded: "I can't really speak for him.

"[3] Murphy also did not appear in a 2008 reunion sketch, which otherwise featured all of the original cast members from the Comedy Central era reprising their roles (excluding Weinstein).

[4] In 2013, Murphy recorded a voice for the computer game Tesla Effect, playing Smart Alex, a Siri-like AI assistant that serves as a sidekick to the main character and heckles the player's failures.