Nicolas McCarthy is an American film director and writer based in Los Angeles. A lifelong lover of film, McCarthy struggled for the first decades of his career, receiving his first break into the motion picture industry at the age of 40 with the release of his 2012 feature film The Pact. In 2014 he released At the Devil's Door, establishing himself primarily as a maker of horror film.

The Pact is a 2012 American supernatural horror film written and directed by Nicholas McCarthy and starring Caity Lotz and Casper Van Dien. The film was made following the success of McCarthy's short film of the same name which showed at the 2011 Sundance Film Festival. The film follows Annie, whose mother has recently died, as she tries to discover what caused her sister Nicole and her cousin Liz to disappear.