Ryōko Maekawa is a Japanese voice actress from Kanagawa Prefecture, born on August 6. She is affiliated with the talent agency Atomic Monkey and has been active in the industry since 2011. Maekawa is a graduate of Sagami Women's University, where she studied in the Faculty of Human Sciences, Department of Social Management, and also pursued training at Human Holdings during her time there.

Her early career consisted of numerous minor roles in anime, gradually building a foundation of experience. A significant step in her career came in 2016 with her role as Yumine Fuda in the television anime Stella no Mahou (Stella's Magi), a part that brought her increased attention. Maekawa has voiced a variety of characters across different series. In the franchise The IDOLM@STER Shiny Colors, she plays the role of Tenka Ōsaki, a member of the unit Alstroemeria. Other notable anime roles include Hanabi Natsubayashi in Jaku-Chara Tomozaki-kun (Bottom-Tier Character Tomozaki), Kansuke in Sing "Yesterday" for Me, and Sayaka Sasayama in Yu-Gi-Oh! ARC-V. Her work also extends to video games, with prominent roles such as Yuki Izumi in HEAVEN BURNS RED, Collei in Genshin Impact, and Wendi in Honkai Impact 3rd.

Maekawa is also known for her recurring collaborations within specific franchises, particularly The IDOLM@STER and HEAVEN BURNS RED, where she engages in game recordings, live performances, and radio hosting. She has been a regular host on the radio program THE IDOLM@STER MUSIC ON THE RADIO and co-hosts A&G Store Presents Takayuki Taguchi and Ryoko Maekawa's Super Radio Shopping. Her work in the IDOLM@STER franchise has also involved performing numerous character songs as part of the unit Alstroemeria, contributing to the series' music discography.

A notable aspect of her personal background is that her father is Atsushi Maekawa, a well-known screenwriter who has worked on series such as Dragon Ball Z and Fresh Pretty Cure!. Her interests and skills include competitive karuta, watching female idols, and playing volleyball.