Kaoru Miki is voiced by Hisakawa Aya. The following has been copied from Hitoshi Doi's Seiyuu Database:
"Hisakawa Aya was born on November 12th, 1968 in Kaizuka. Her blood type is A. She is 158 cm tall and weighs 40 kg. Her three sizes are 76-59- ??. Her shoe size is 23 cm. She works for Aoni Production."
Aya is a wonderful seiyuu, in my opinion. You might recognize her as the voice of Mizuno Ami from Bishoujo Senshi Sailormoon, as Mano Yohko from Mamono Hunter Yohko, or as Skuld from Aa Megami-sama!. As well as being a great voice actress, she's a extrordinary singer! She has released a multitude of albums, including the ones that she performs as a character on. In total, she has released 11 solo albums, has appeared on over 100 other cds [both drama and musical], and has released 26 singles! The woman is definately busy. ^^
Photo of Aya-sama