Character's name: "Rudeus Greyrat(voice)"
Birthday: 10/30/1987
Birthplace: Tokyo, Japan
Biography:
Yumi Uchiyama (内山 夕実 Uchiyama Yumi, born October 30, 1987) is a Japanese voice actress from Tokyo, Japan and is affiliated with Office Osawa.

Character's name: "Rudeus Greyrat's Former Self(voice)"
Birthday: 10/11/1980
Birthplace: Saitama, Japan
Biography:
Tomokazu Sugita is a Japanese voice actor who was born on October 11, 1980 in Saitama, Japan. Previously affiliated with Atomic Monkey, he is now the CEO of AGRS Co., Ltd. His bloodtype is B. Sugita and fellow seiyuu Narita Ken are sometimes referred to as "brothers" due to a joke made during Live Pastel Collection 2003. During an Omaera No Tame Darou event, hosts Toshiyuki Morikawa and Nobuyuki Hiyama asked Sugita how they were similar. His answer was that both of them rarely blink, making eye-to-eye contact with either a frightening encounter. Sugita has also had a close friendship with fellow seiyuu Yuichi Nakamura since 2001. Both play male leads in two anime adapted from Key visual novels, Yuichi Aizawa of Kanon and Tomoya Okazaki of Clannad, respectively. Sugita won for "Best Supporting Actor" in the Third Seiyu Awards. On April 1, 2020, he left Atomic Monkey, where he had belonged for many years, and on October 11, 2019 he established AGRS Co., Ltd., where he serves as the representative director.

Character's name: "Roxy Migurdia (voice)"
Birthday: 06/28/1992
Birthplace: Kanagawa, Japan
Biography:
Konomi Kohara (小原 好美, Kohara Konomi) is a Japanese voice actress affiliated with Office Osawa. She debuted as a voice actress in 2016 and started to get main roles in 2017.

Character's name: "Eris Boreas Greyrat(voice)"
Birthday: 09/09/1988
Birthplace: Fukuoka, Japan
Biography:
Ai Kakuma is a Japanese voice actress from Fukuoka. She is affiliated with Mausu Promotion.

Character's name: "Sylphiette / Fitz (voice)"
Birthday: 09/13/1987
Birthplace: Tokyo Prefecture, Japan
Biography:
Ai Kayano is a Japanese voice actress and singer affiliated with Pro-Fit.talent agency; she is represented by Office Osawa since 2015. After debuting as a voice actress in 2010, she played her first lead role as Meiko "Menma" Honma in the 2011 anime television series Anohana: The Flower We Saw That Day. She is also known for her lead roles as Inori Yuzuriha in Guilty Crown, Utaha Kasumigaoka in Saekano, Mashiro Shiina in The Pet Girl of Sakurasou and Shiro in No Game No Life. She has also performed opening, ending, and insert theme for various anime she has acted in.