A member of 81 Produce gave Wakako her nickname, Kujira, which means "whale".
Kujira's blood type is B.
Many of her voice acting roles are middle-aged men.
I My Me! Strawberry Eggs! (Ruru Sanjô)
Ceres, Celestial Legend'(Kyû Oda)
Kyo Kara Maoh! (Queen Kumahachi)
Cooking Papa (Katsuyo Yoshioka)
Ge Ge Ge no Kitaro (Guwagoze)
Sgt. Frog (Disneyland Yokozuna)
Jigoku Shôjo (Meiko Shimono)
Sonic X (Ella)
You're Under Arrest (Auntie Haramura)
Tactics (Book Ghost)
Demashita! Powerpuff Girls Z (Miss Tenjô)
Higurashi no Naku Koro ni (Landlady, Tamae Hôjô)
Full Metal Panic! (Peggy Goldberry)
Magical Nyan Nyan Taruto (Sabure)
Case Closed (Hachirô Shiotataira' wife)
Romeo no Aoi Sora (Enbelino, Faustino)
She is employed with 81 Produce.
Did the voice of Ursula for the Atlantica part of Kingdom Hearts 2 Japanese version.