Tsutomu Kashiwakura is a Japanese voice actor and sound director born on March 1, 1966, in Sagamihara, Kanagawa Prefecture. He is affiliated with the talent agency Magus. Throughout his career, he has used several stage names, including the hiragana version 柏倉つとむ and the katakana version 柏倉ツトム, before adopting his current katakana stage name, カシワクラツトム, in September 2004.

Driven by a childhood dream to voice the character Koji Kabuto from Mazinger Z, Kashiwakura pursued a career in voice acting and became a first-generation student at the ARTSVISION acting school. He made his debut in 1986 with a role in the anime Mobile Suit Gundam ZZ. In addition to his voice acting work, Kashiwakura has also worked extensively as a sound director, beginning around the year 2000.

Kashiwakura has built a prolific career with numerous voice roles across television anime, original video animations, and films from the 1980s onward. His filmography is marked by a wide range of characters, from childlike roles to villains, often showcasing his ability to portray both young boys and teenagers. Among his most notable and long-running roles is Noritaka Hamaji Hamazaki in the beloved series Chibi Maruko-chan, a character he has voiced for many years. Another significant early role was Glemy Toto in Mobile Suit Gundam ZZ, which is considered his debut performance. He is also well-known for his multiple roles in the Yuusha-Oh GaoGaiGar franchise, where he voiced Kōsuke Entōji, Pinchernone, and Tomoro 0117. Other prominent voice roles include Ryo Bakura in Yu-Gi-Oh!, Blue Saphir in Sailor Moon R, and Harry MacDougall in Outlaw Star. The extensive list of roles provided also features many other performances, such as Ginnosuke in Kangetsu Ittō: Akuryō-Giri, various characters in the Urotsukidōji series (Kuroko, Idaten), Lightfoot in Transformers: Super God Masterforce, and Hikaru Matsuyama in Captain Tsubasa J, demonstrating the breadth of his work across different genres and eras.

Beyond his voice acting, Kashiwakura has established a parallel career as a sound director. His work in this capacity includes notable series such as Twelve Kingdoms, the Blue and Other Stories series (including its sequel ~Enishi~), Nurse Witch Komugi, Human Crossing, and Samurai Champloo. This transition showcases his versatility and deep understanding of audio production within the anime industry. He is also known for his love of video games and computers, a passion so intense that he would reportedly set a timer on his TV to manage his playtime.