Oohara Sayaka was born December 6, 1975 in Yokohama, Kanagawa Prefecture, Japan. She is a voice actress (seiyuu) currently affiliated with Haikyou, Tokyo Actor's Consumer's Cooperative Society. She is a graduate of Aoyama Gakuin University's Department of Literature. Her nicknames are Saaya and saya-saya. On her 34th birthday, Sayaka got married.
Her younger brother Oohara Takashi is also a voice actor.