She is also well known for her roles as Akari Kamigishi in To Heart, Fuu in Samurai Champloo, Saber in Fate/stay night, Leina in Queen's Blade, Melfina in Outlaw Star, Lafiel in Crest of the Stars – Banner of the Stars, Nodame in Nodame Cantabile, Aoi Sakuraba in Ai Yori Aoshi, Mahoro in Mahoromatic and Natsuki Mogi in Initial D.
In 1996, Kawasumi received the Yoyogi Animation Academy award at that year's Sony Music Entertainment Japan's auditions. In 1997, she played her first voicing role as a policewoman in the animated adaptation of You're Under Arrest.
Since then, Kawasumi has played in a variety of roles.
JoJo's Bizarre Adventure Roles
- Ayako's favorite scene was Jonathan and Erina's moment after their departure and just before Dio shows up on the ship in Episode 9.
- Ayako's favorite character other than her own is Jonathan. Her favorite line in the series is Speedwagon saying Dio smells awful in Episode 3.
- Ayako's favorite episode is Episode 3, and one of her favorite lines comes from the brats in Episode 1 complimenting Dio after forcefully kissing Erina.
- When asked for the Spring 2022 issue of JOJO magazine, Ayako stated her favorite character was DIO in Stardust Crusaders, and her favorite stand was Osiris.
- Ayako first became familiar with JoJo's Bizarre Adventure as a child, as her older brother was a reader of Weekly Shonen Jump. She was terrified of Phantom Blood due to it's horror elements, but eventually became a big fan during the beginning of Stardust Crusaders's serialization.
- Ayako thinks that Erina's most famous scene is when Dio Brando forcefully kisses her. She believes that her proceeding to wash her mouth out with dirty water is a sign of her strength, something she also feels is shown when she decides to abandon the sinking ship at the end of Phantom Blood. Ayako states that Erina is not just a woman who needs to be protected, but a woman who can protect others.