Donald Romain Davis (born February 4, 1957) is an American film score composer, conductor, and orchestrator. Best known for his work on The Matrix, he has worked on a variety of films, from horror to comedy.

Davis was born in Anaheim, California. He took an early interest in music—he learned how to play the trumpet at the age of 9, and began to write short pieces at the age of 12. Throughout early life, he found himself interested mainly in the jazz and rock genres. After graduating from high school, Davis enrolled at UCLA. He continued his study of musical composition with tutor Henri Lazarof. Additionally, he learned orchestration from Albert Harris. During their orchestration lessons, Harris introduced Davis to the TV composer Joe Harnell, who supported Davis during his search for work—his first job was working for composer Mark Snow's TV show Hart to Hart. He also worked as additional orchestrator for Michael Kamen on the film Die Hard 2: Die Harder.

Davis won Emmys in 1990 for Beauty and the Beast and 1995 for SeaQuest DSV. He wrote scores mostly for television series up until 1995, in which he wrote a few of the cues for the animated Disney motion picture A Goofy Movie. He continued to score television series until the two then young directors, the Wachowski brothers, hired him to score their neo-noir film Bound. It was reasonably successful at the box office. Bound was the film which led Davis into becoming the composer for the entire Matrix trilogy. Subsequently, Davis has composed scores for films such as Jurassic Park III (recommended to the filmmakers by John Williams, the composer of the scores for the first two films in the series), House on Haunted Hill, Behind Enemy Lines, and The Unsaid.

Donald Davis or Don Davis may refer to:

The Matrix Revolutions is a 2003 American science fiction action film and the third installment of The Matrix trilogy. The film was released six months following The Matrix Reloaded. The film was written and directed by the Wachowski brothers and released simultaneously in 60 countries on November 5, 2003. Despite the fact that it is the final film in the series, the Matrix storyline continued in The Matrix Online.

The film was the second live-action film to be released in both regular and IMAX movie theaters at the same time.

After the events of The Matrix Reloaded, Bane and Neo are unconscious. Neo's neural patterns suggest he is in the Matrix. Neo finds himself trapped in a subway station, a transition zone between the Matrix and the machine world. Neo meets a "family" of programs, including a girl named Sati, whose father tells Neo the subway is controlled by The Trainman, an exile loyal to the Merovingian. When Neo tries boarding a train with the family, the Trainman refuses to let him aboard and punches Neo into a wall.

Rob Dougan (/rɒb duːɡən/; born 1969 in Sydney, Australia), is a genre-blending music composer. Mixing elements of orchestral music, trip hop, and bluesy vocals, his work is tangentially relatable to electronic music. He was known primarily for his breakthrough 1995 single "Clubbed to Death (Kurayamino Variation)", further popularised by 1999's The Matrix soundtrack. "Clubbed to Death" was re-released on his debut album Furious Angels in 2001, seven years after its initial release.

In 1990, Rob Dougan's friend Rollo brought him from Australia to London. From 1991 to 1995, Dougan was a Producer and remix artist. In 1994 his remixes started charting in the UK. He also released his first single, "Hard Times".

In 1995, his hit single Clubbed to Death gave him a recognised name in the UK dance club scene. He produced half a dozen remixes of it, including the "Kurayamino Variation". His label Mo' Wax Records was pleased and commissioned the follow-up, "Clubbed to Death 2" (later the bonus track on the album). CTD2 was never released as a single, but appeared on the James Lavelle disc of the 1996 DJ mix compilation album, Cream Live 2.

David Buckley (born in London on 7 June 1976) is a British film score composer.

Buckley is best known for working and still works extensively with composer Harry Gregson-Williams, including work on the famous videogame Metal Gear Solid 4: Guns of The Patriots.

Among Buckley's numerous solo projects are the films Blood Creek (2008, director: Joel Schumacher), The Forbidden Kingdom (2008, director: Rob Minkoff; the first film to feature both Jackie Chan and Jet Li), Tell-Tale (2009, director: Michael Cuesta), as well as From Paris with Love (2010, director: Pierre Morel; starring John Travolta and Jonathan Rhys Meyers) and the TV series The Good Wife. Buckley's most recent project is the Ben Affleck-directed The Town whose score was co-composed with Harry Gregson-Williams.