Sora Amamiya is a Japanese voice actress and singer from Toyko, affiliated with Music Ray'n. After passing an audition held by Music Ray'n, she made her voice acting debut in 2012. She played her first main role as Kaori Fujimiya in the 2014 anime series.

Sora Amamiya plays as Chizuru Mizuhara (voice) in KonoSuba: God's Blessing on This Wonderful World!.
Sora Amamiya is the top #1 member of the cast and appears in 36 episodes.

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.

Ai Kayano plays as Sylphiette (voice), Fitz (voice) in KonoSuba: God's Blessing on This Wonderful World!.
Ai Kayano is the top #2 member of the cast and appears in 24 episodes.

Jun Fukushima is a Japanese voice actor and narrator who is affiliated with Arts Vision. He's been acting since the 1990s. He is sometimes confused with fellow Japanese voice actor Jun Fukuyama, as their name spellings are only different by one Kanji.

Jun Fukushima plays as Kazuma Satou (voice) in KonoSuba: God's Blessing on This Wonderful World!.
Jun Fukushima is the top #3 member of the cast and appears in 20 episodes.

Rie Takahashi plays as Ninym Ralei (voice) in KonoSuba: God's Blessing on This Wonderful World!.
Rie Takahashi is the top #4 member of the cast and appears in 12 episodes.