Tomo Shigematsu is a Japanese female voice actor born on September 9, 1972, in Tokyo, Japan. Throughout her career, she has been affiliated with the talent agencies Mausu Promotion and Media Force, and is currently a freelancer. Her voice is characterized by a lower register, which allows her to primarily portray cool-headed boy characters and middle-aged women, though she is also capable of playing cheerful youth and young girls.

Shigematsu began her voice acting career in the early 2000s and has built a substantial portfolio of roles in television anime. Some of her most prominent and long-running work is within the Naruto franchise. She has voiced multiple characters in the series, including Udon, the young ninja from the Hidden Leaf Village, and Gamatatsu, one of the toads summoned by Naruto. She also voiced the character as a child in the sequel series Boruto: Naruto Next Generations. Another significant early role was Kojima Hitoshi in the critically acclaimed series Hikaru no Go.

Regarding the specific roles mentioned in the query, Shigematsu's filmography confirms her involvement in several of them. She voiced Wen Yong Fa in both B-Legend! Battle Bedaman and its sequel series, B-Legend! Battle Bedaman: Fire Spirits. She also took on the role of Yamanote-dono in the anime Shinshaku Sengoku Eiyū Densetsu - Sanada Jū Yūshi The Animation. However, the provided search results do not contain information verifying her participation in the series Honey Tokyo for a role named Takeru, or in Halo Legends for a role named O'Brien.

Beyond these roles, Shigematsu's career includes a wide range of character voices in numerous other anime series. Her credits include roles in Shōnen Onmyōji, Jinki: Extend, and the long-running anime Shima Shima Tora no Shimajirō. She has also been active in dubbing foreign films and television series into Japanese, with credits including the Korean drama You're Beautiful, the Hong Kong film Infernal Affairs, and the American series iCarly. Her work in the 2000s also featured roles in series such as Gankutsuou: The Count of Monte Cristo and Tsubasa: Reservoir Chronicle. In the 2010s, she was a cast member in the various seasons of the anime Bonobono.