Megumi Ogata is a Japanese voice actress and singer from the Greater Tokyo Area. As a singer, she goes by the name em:óu. She attended Tokai University, but left due to lack of interest. She is also best known for voicing Makoto Naegi and Nagito Komaeda from the Danganronpa Series, Sailor Uranus from Sailor Moon, Kurama from Yu Yu Hakusho, Tier Harribel from Bleach, and Shinji Ikari from Neon Genesis Evangelion, as well as playing Yugi Mutou and Dark Yugi in Yu-Gi-Oh! and also Yukito Tsukishiro/Yue in Cardcaptor Sakura.

緒方惠美，日本女性配音員、演員、歌手。當歌手或填詞時藝名為「em:óu」。出身於東京都千代田區。Breathe Arts 代表。

绪方惠美是日本东京都出生的女配音兼歌手，B型双子座。桐朋女子中学、高中毕业；东海大学海洋学系肄业。东京声专音乐学校（现在为昭和音乐艺术学院）歌剧科及同研究科毕业。代表作有《幽游白书》（藏马／南野秀一）、《美少女战士Sailor Moon S》（天王遥／水手天王星）、《新世纪福音战士》（碇真嗣）等。绪方惠美是声优界的反串男角最为著名的女性声优。出道作《幽游白书》中，她饰演冷静的美少年藏马（南野秀一），略带沙哑却充满磁性的低沉声线不仅令这一角色人气急升，更确立了她为男性角色献声的路线。