Masashi Hamauzu (浜渦 正志, Hamauzu Masashi, born September 20, 1971) is a Japanese composer and pianist. Hamauzu, who was employed at Square Enix from 1996 to 2010, was best known during that time for his work on the Final Fantasy and SaGa video game series. Born into a musical family in Germany, Hamauzu was raised in Japan. He became interested in music while in kindergarten, and took piano lessons from his parents.

Hamauzu was hired by Square as a trainee, and his debut as a solo composer came the following year when he scored Chocobo no Fushigina Dungeon. He has collaborated with his friend and fellow composer Junya Nakano on several games, and has worked closely with synthesizer programmer Ryo Yamazaki on most titles since SaGa Frontier 2.

After Nobuo Uematsu left Square Enix in 2004, Hamauzu took over as the leading composer of the company's music team. He was the sole composer for Final Fantasy XIII. He has also become a renowned piano arranger, and has arranged a number of albums, including Yasunori Mitsuda's Sailing to the World piano score in 2006. His music incorporates various styles, although he mostly uses classical and ambient music in his pieces. In 2010, Hamauzu left Square Enix to start his own studio, MONOMUSIK.

Yoko Shimomura (下村 陽子, Shimomura Yōko, born October 19, 1967) is a Japanese video game composer and pianist. Shimomura has worked in the video game industry ever since graduating from the Osaka College of Music in 1988. From then until 1993, she worked for Capcom, where she composed wholly or in part the scores for 16 games, including Final Fight and Street Fighter II: The World Warrior.

From 1993 until 2002, Shimomura worked for Square, where she composed for a further eight games. While working for Square, she was best known for her work on the soundtrack for Kingdom Hearts, which was her last game for the company before leaving. Starting with Mario & Luigi: Superstar Saga in 2003, she began working as an active freelancer.

Her works have gained a great deal of popularity, and have been performed in multiple video game music concerts, including one, Sinfonia Drammatica, that was focused half on her "greatest hits" album, Drammatica: The Very Best of Yoko Shimomura, and half on the music of a previous concert. Music from several of her games have been published as arranged albums, or as piano scores.

Nobuo Uematsu (植松 伸夫, Uematsu Nobuo, born March 21, 1959) is a Japanese video game composer, best known for scoring most of the titles in the Final Fantasy series by Square Enix. He is considered to be one of the most well known composers in the video game industry. Sometimes referred to as the "Beethoven of video games music", he has appeared five times in the top 20 of the annual Classic FM Hall of Fame. Uematsu, a self-taught musician, began playing the piano at the age of twelve, with English singer-songwriter Elton John as his biggest influence. Uematsu joined Square in 1986, where he first met Final Fantasy creator Hironobu Sakaguchi. The two later worked together on many titles at the company, most notably in the Final Fantasy series. After nearly two decades with Square, Uematsu left in 2004 to create his own production company, which included the Dog Ear Records music label. He has since composed music as a freelancer for other games, including ones developed by Square Enix and Sakaguchi's development studio, Mistwalker. Many soundtracks and arranged albums of Uematsu's game scores have been released. Pieces from his video game works have been performed in various Final Fantasy concerts, where he has worked with Grammy Award–winning conductor Arnie Roth on several of these performances. From 2002 to 2010, he was in a hard rock band with Square Enix colleagues Kenichiro Fukui and Tsuyoshi Sekito called The Black Mages, in which he played electronic organ and other keyboards. The band played various arranged rock versions of Uematsu's Final Fantasy compositions. He has since performed with Earthbound Papas, which he formed as the successor to The Black Mages in 2011.