Takayo Ooyama (大山貴世), born May 22, 1988, in Tochigi, Japan, was the eighth actress to play Michiru Kaiou/Sailor Neptune in the Sailor Moon musicals. Her first musical was Shin Kaguya Shima Densetsu in 2004, and her last performance was in its kaiteiban.
Since the musicals ended, Takayo has released various idol DVDs and performed in several smaller stage productions.
- Though Takayo has the same family name as Anza Ohyama and Chiho Ohyama, she is not related to them in any way.
Takayo performed as Michiru Kaiou/Sailor Neptune in the following musicals: