Chitose Morinaga is a Japanese voice actress from Kanagawa Prefecture, born on January 8. She began her career in 2014, making her debut with a minor role in the anime series Blade Dance of the Elementalers. That same year, she appeared on the television program Nino-san as a first-year voice actor. Morinaga was initially affiliated with the agency Sigma Seven before moving to Stay Luck in October 2019. She has a voice noted for its higher pitch, though she demonstrates versatility by employing a variety of tones in her performances.

Morinaga has built a substantial portfolio of anime roles, often voicing characters with energetic or comedic personalities. One of her earliest leading roles was as Karen Jinryō in the 2015 series Shomin Sample. A significant and recurring role came in 2016 when she was cast as the stoic and intimidating Umiko Ahagon in the popular workplace comedy New Game!, a character she would reprise in the sequel New Game!! and related video games. Another frequent collaboration is with the Chinese comedy anime Ani ni Tsukeru Kusuri wa Nai! (also known as Please Take My Brother Away!), where she has voiced the character Miaomiao across multiple seasons, including its second, third, and fourth installments. In 2016, she also voiced Thea Kreutzer in High School Fleet, a role she continued in subsequent OVAs and a feature film.

Her career continued to expand with a wide range of roles in the late 2010s and 2020s. She voiced Nejire-Usagi in the 2019 series Pastel Memories and played multiple small characters in the long-running franchise Yu-Gi-Oh! SEVENS. In 2021, she took on the role of Chicchi in the children's anime iii icecrin and its second season. The year 2022 saw her voice the Sproutlings in the fantasy adaptation Legend of Mana: The Teardrop Crystal. She has also been active in major franchises, voicing Caroline Raiden in the space opera Uchū Senkan Yamato 2205: Aratanaru Tabidachi and Ginger in the 2023 reboot of Urusei Yatsura.

Beyond anime, Morinaga is also a prolific voice actor in video games. Her notable game credits include the role of Shizuko Kawawa in the popular mobile game Blue Archive, which also had an anime short. She has voiced characters in major titles such as Bradamante in Fate/Grand Order, Shiki in Samurai Shodown, and Bena in Arknights. In 2016, she performed a character song for her role as Timothy in the series Anne Happy♪, contributing to the franchise's music CD. Her work across television, film, and games demonstrates a consistent and active career in the voice acting industry.