Madoka Shimogaki (下垣真香; born December 15, 1991) is a Japanese actress and former idol from Okayama Prefecture, Japan. She began her career in musical theater, playing the title role in the 2003 Japanese production of Annie. From 2005 to 2007, she appeared as an Oha Girl on the children’s television program Oha Suta. In 2007, she joined the Japanese idol group 9nine, remaining a member until August 2010. Following her departure from the group, Shimogaki continued her acting career in theater, film, and television. Her film credits include Death Forest: Kyōfu no Mori 2 (2015), Death Forest: Kyōfu no Mori 3 (2015), and Code Blue: The Movie (2018). She has also appeared in television dramas such as Hiyokko (2017) and Code Blue: The Third Season (2017). She was previously represented by LesPros Entertainment until June 2022.