Olivia is the head maid to left-wing politician Uwe Appel.

~!She is also an accomplice to Assassin Deepwater also known as Corpse.!~

Conflict-ravaged nations now deploy covert operatives instead of missiles. Lily is recruited into spy-training… but her practical skills are absolutely abysmal. Desperate to pass, she leaps at the chance to join the mysterious “Tomoshibi” team. Too bad the team is filled with even more hopeless spies. Together they must conquer the Impassible Mission and best their genius instructor, but the true purpose behind their classroom is more harrowing than they can imagine… 
 
(Source: HIDIVE)

__Height:__ 157 cm 

[Agency Profile](https://inari-inc.com/talent/yoko-hikasa/) | [Blog](https://ameblo.jp/hikasayoko-official) | [Instagram](https://www.instagram.com/hikasayoko_official/) | [Threads](https://www.threads.net/@hikasayoko_official) | [(Old) Twitter](https://twitter.com/hikasayokoSP)

Co-hosted the popular weekly radio show Odoroki Sentai Momonoki Five (おどろき戦隊モモノキファイブ) with fellow seiyuu [Eriko Nakamura](https://anilist.co/staff/103983) from 2009 to 2017.
She got married to a person from outside the industry in 2015.
On September 5, 2024, she announced that she was starting her own voice talent agency, [i.nari](https://inari-inc.com/), which would also be representing her going forward.

__Non-anime roles:__
- Neve - Goddess of Victory: Nikke (VG)
- Red Hood - Goddess of Victory: Nikke (VG)
- Celia - Tevi (VG)
- Emilie - Genshin Impact (VG)
- Judith Lanster - The Legend of Heroes Series (VG)
- Brigitta Lycaon - Metaphor: ReFantazio (VG)
- Vita - Honkai Impact 3rd (VG)
- Saeki Kazuko - YanOta: The Delinquent and the Otaku (Drama CD)
- Evelyn Chevalier - Zenless Zone Zero (VG)

The second season of Spy Kyoushitsu.
 
Four members of the Din Republic's spy team Lamplight embark on a mission to capture an enemy spy. Although they struggle to work together due to their clashing personalities, Thea, Monika, Erna, and Annett complete their objective. While enjoying a short break, the four girls encounter a woman named Matilda, who claims to be Annett's mother. As they get to know Matilda, the team is dragged into an escalating conflict that tests their teamwork and allegiances.
 
Meanwhile, the remaining Lamplight members notice that the dispatched squad has yet to report back. Worried about their allies, Klaus and Lily set out on an emergency expedition to locate their missing teammates. As the two uncover troubling information about rising tensions in the area where their friends last were, they must act quickly to reassemble the team before the mission reaches the point of no return.
 
(Source: MAL Rewrite)