The highly anticipated anime adaptation of “A Wild Last Boss Appeared!” (Yasei no Rasu Bosu ga Arawareta!) has revealed additional cast and staff members, alongside a special preview of its first episode. Set to premiere in October 2025, the series continues to build excitement among fans of the popular dark fantasy isekai light novel.
Expanding the Ensemble: New Voice Cast Members
The production has announced five new voice actors joining the already established main cast. These additions will bring to life key members of the Twelve Heavenly Stars, the formidable allies of the protagonist, Lufas Maphaahl.
The newly revealed cast members are:
- Yukina Shuto as Aries
- Hisako Tojo as Libra
- Naoya Uchida as Aigokeros
- Mika Kanai as Parthenos
- Cocoro Omori as Virgo
They join the previously announced Ami Koshimizu, who stars as the titular “Last Boss,” Lufas Maphaahl, and Yuri Usui as Dina.
Behind the Scenes: Core Staff Details
The creative team bringing “A Wild Last Boss Appeared!” to the screen has also been further detailed. Yuya Horiuchi is directing the anime at Studio WAO World, promising a faithful adaptation of the beloved series.
Key staff members include:
- Director: Yuya Horiuchi
- Series Composition: Kazuyuki Fudeyasu
- Character Designer: Maiko Ebisawa
- Sub-Character Designers: Takashi Kobayashi and Shota Ueno
- Animation Studio: WAO World
- Producer: WOWMAX
The anime is based on the light novel series written by Firehead and illustrated by YahaKo, which concluded its run in April 2019. J-Novel Club releases both the light novel and its manga adaptation in English. The story centers on a man who awakens 200 years after her defeat, in the body of his overpowered MMO character, Lufas Maphaahl—The Black-Winged Tyrant.
First Glimpse: Episode 1 Preview Stream
Fans can get an early look at the upcoming series with a special 174-second (approximately three-minute) battle clip from the opening of the first episode. This preview, which highlights the intense action and animation, was released on July 8, 2025, for a limited time. The clip was also showcased as a world premiere at Anime Expo 2025 on July 5, providing attendees with an exclusive early viewing experience. The premiere episode begins in the midst of a climactic battle, introducing Lufas as she faces off against a group of RPG characters. The animation sequences are described as fluid, with intense music and sound effects enhancing the combat scenes.
