Frederick MacDonald "Mac" Quayle, Jr. is an American composer for film, television, and video games. He has worked as the score composer for several TV series, including American Horror Story, Mr. Robot, Scream Queens, American Crime Story, Feud, Pose, 9-1-1 and its spinoff 9-1-1: Lone Star, and The Politician. Quayle has also scored additional music for films and video games, and has mixed and produced scores led by other composers.
Quayle began his career in the late 1980s, working with producer Hex Hector as HQ2 and briefly performing in hip-hop band Rise Robots Rise. He worked with Cliff Martinez as an additional composer for several films, including Drive, Contagion, and Spring Breakers. He won the Primetime Creative Arts Emmy Award for Outstanding Music Composition for a Series for Mr. Robot, and has also been nominated for three other Creative Arts Emmy Awards.