Sean P. Callery (born 1964) is an American film and television composer, best known for scoring 24 and 24: Legacy, as well as 24: The Game. Classically trained as a composer and musician, Callery's musical distinction lies in his integration of instruments, live sound, and sophisticated sound effects created through elaborate computer manipulation. Passages reminiscent of electroacoustic music support the characteristic mood of 24 without the use of any sounds normally thought of as musical.