Tomoko Hiratsuji is a Japanese voice actor and actress born on July 20, 1960, in Osaka Prefecture, Japan. Her career in the entertainment industry began in 1983. Her body of work includes voice roles in anime series, animated films, and live-action superhero television productions known as tokusatsu.

Hiratsuji's career encompasses a range of voice performances across several decades. One of her earliest roles was in the 1983 anime series Genesis Climber MOSPEADA, where she provided a voice for the character Mint's Mother. In the late 1980s and 1990s, she was active in the Super Sentai series, a long-running tokusatsu franchise. Her credits include voicing Bebu in an episode of Chōjū Sentai Liveman in 1988 and providing voices for Dolls in Chikyū Sentai Fiveman in 1990.

The late 1990s and 2000s saw Hiratsuji take on roles in several well-known anime series. From 1999, she voiced the character Atsuko Okamura in the long-running magical girl series Ojamajo Doremi (Magical DoReMi). In 2000, she appeared in an episode of the immensely popular series InuYasha, credited in the role of Mother. A significant role from this period was that of Parome in the 2002 anime television series Genma Wars: Eve of Mythology. Her voice work continued into the 2010s with roles in prominent anime films. She was part of the cast for Mamoru Hosoda's critically acclaimed film Wolf Children in 2012. The same year, she voiced a bus announcer in the animated film Rainbow Fireflies. Her later television credits include small roles in Blue Exorcist in 2011 and Gatchaman Crowds in 2013. Information regarding the specific role of Yōko in Naniwa Kin'yū Den Minami no Teiō could not be verified in the available sources.