Keiko Yokozawa (横沢　啓子, Yokozawa Keiko?) (birth name Keiko Nanba (難波　啓子, Nanba Keiko?)), born September 2, 1952 in Niigata, Japan, is a Japanese seiyū.

She is most known for the roles of Dorami (Doraemon), Mami Sakura (Esper Mami), Benio Hanamura (Haikara-san ga Tōru), and Sheeta (Castle in the Sky)

Source: Wikipedia