Maruta Maris parents both work in theatre, with her father being a stage designer and her mother an actress. From a young age, Mari has shown interest in paintings and manga. She attended art school and was also part of the local manga research club. Apart from voice acting, Mari is also active as a jazz singer and is currently a member of the unit Wild Strawberry with Inoue Kikuko and Ogasawara Junko. Mari got married in June 2013 to someone she had been dating for ten years.