Three New Voice Stars Join 'The Case Book of Arne' Anime Cast: Full Premiere Details Confirmed

The anticipation surrounding the television anime adaptation of the gripping mystery adventure game, The Case Book of Arne, has intensified following the announcement of three crucial additions to its voice cast. Just weeks ahead of its highly awaited Japanese premiere on January 6, 2026, the production revealed that renowned voice actors Yuki Sakakihara, Yuuki Shin, and Yoko Hikasa will join the ensemble.

These new talents will take on the roles of Zisye, Nachzehrer, and Amy, respectively. Their inclusion rounds out an already impressive roster, which features Mariya Ise as Louis Hartman, Koki Uchiyama inhabiting the role of the titular vampire detective Arne Neuntöte, Aimi Tanaka voicing young Arne, and Yuka Nukui portraying the noble's daughter, Lynn Reinweiss.

The Premise and Production Team

The core premise establishes a fascinating, yet precarious, partnership: the immortal Arne, who solves crimes, and Lynn, who possesses an intense and perhaps dangerous curiosity about the undead. Together, they embark on a quest to solve a series of gruesome, vampire-related homicides that plague their city under the eternal shadow of a crimson moon.

The production boasts a formidable creative team dedicated to translating the game's dark atmosphere and complex scenario. Keisuke Inoue, celebrated for his directorial prowess in series such as My Next Life as a Villainess: All Routes Lead to Doom!, takes the helm as director. Inoue collaborates on the script with Murasaki, the original creator responsible for the game's intricate scenario, ensuring that the anime remains faithful to the beloved source material.

Visually, the series is in expert hands, with Akiko Satō, acclaimed for her detailed character design work on A Condition Called Love, serving as both character designer and chief animation supervisor. Furthermore, the dark, suspenseful tone is underscored by the score composed by Yoshiaki Fujisawa, known for his evocative compositions in works like Takopi’s Original Sin. Animation production is managed by SILVER LINK, known for delivering high-quality adaptations.

Broadcast Details and Source Material

The source material, which began its life as freeware in 2017, later found widespread success through a manga serialization published by Kadokawa. Fans should mark their calendars for the late-night debut on NTV and other key Japanese networks on January 6, 2026, followed by broadcasts on BS NTV and AT-X the subsequent day.

The inclusion of Zisye, Nachzehrer, and Amy, portrayed by this distinguished trio of VAs, promises to inject significant depth and unexpected twists into the unfolding supernatural detective drama, confirming this as a must-watch for aficionados of sophisticated mystery and vampire lore.