Nako Mizusawa is a Japanese actress and occasional voice actress born on October 1, 1993, in Aichi Prefecture. She began her entertainment career in 2007, first appearing in the television drama Hana Yori Dango 2 and gaining attention after winning a grand prix in a magazine-sponsored contest. Her early work focused primarily on live-action film and television, with prominent roles in horror films such as The Baby's Maiden and the thriller School Under the Site.

Mizusawa's most notable contribution to anime voice acting came in 2009 when she voiced the character Kiiko Shimazu in the animated film Mai Mai Miracle. The film, produced by Madhouse and directed by Sunao Katabuchi, is set in 1950s rural Japan and tells the story of a friendship between two young girls. Her character, Kiiko, is a reserved third-grader who moves from Tokyo to the countryside and becomes friends with the imaginative protagonist, Shinko. This voice role represents her most significant and widely recognized work in the animation field.

While Mizusawa has built a substantial career as a live-action actress, appearing in numerous television dramas and films including the live-action adaptations of GANTZ and the Japanese version of Avatar, her voice acting credits remain limited. Beyond Mai Mai Miracle, her voice work includes a commercial for Pedigree Dentax. Her career has been primarily focused on on-screen acting roles, with her contribution to anime voice acting being a notable but singular achievement.