Kentaro Sakaguchi is a Japanese actor and model. He debuted as a model in Men's Non-no magazine in 2010, and as an actor under Tristone Entertainment in 2014. He has since starred in television series Tokyo Tarareba Musume (2017) and Signal (2018), as well as films The 100th Love with You (2017) and Color Me True (2018).

Tokyo Tarareba Girls is a Japanese manga series written and illustrated by Akiko Higashimura. It was serialized in Kodansha's josei manga magazine Kiss from March 2014 to April 2017 and later collected in nine bound volumes. It is licensed for an English-language release by Kodansha USA. The manga won the Eisner Award for Best U.S. Edition of International Material—Asia in 2019.