Ryōko Shiraishi (白石涼子, Shiraishi Ryōko?, born September 9, 1982) is a seiyū from Nara, Japan who works for Aoni Production. Due to her low and gentle voice, she is commonly typecast as either the effeminite-and-kind young man or the sexually-mature but sweet-and-sensitive supporting lady. She was also formerly a member of the seiyū unit DROPS, along with Ai Nonaka, Akemi Kanda, Tomoko Kaneda, and Mariko Kōda.