IMDb Unveils Top 10 Anime Side Characters of 2025, Featuring Standouts from Re:Zero S3 and Apothecary Diaries S2

IMDb has officially released its list detailing the top 10 anime side characters who defined 2025. The rankings highlight supporting cast members who consistently stole scenes across major series this year, often eclipsing the main players with their personalities and crucial actions. We are seeing picks pulled from heavy hitters like Re:Zero Season 3 and The Apothecary Diaries Season 2.

Gaoshun from The Apothecary Diaries Season 2 secured the number 10 spot. He was recognized for his loyal and strong presence as Jinshi's aide in the imperial setting. Readers specifically cited his backstory as a eunuch and his quiet reliability.

This placement aligns with his performance in the spring 2025 supporting character polls on Anime Corner, where he captured 12.58% of the vote. Gaoshun’s role in the court intrigue provided a necessary counterpoint to Maomao’s investigations, confirming that 2025 anime relied heavily on its supporting ensemble.

Reinhard from Re:Zero Season 3 also made a significant appearance. His inclusion is largely due to his overwhelming power levels that often overshadowed the protagonists during key story arcs. Reinhard’s divine sword fighting elevated the stakes in Re:Zero.

Other notable inclusions mentioned in the general buzz include Benimaru Shinmon and Ren Kaji, both recognized in seasonal tallies for their intense energy and distinct attitudes.

Data collected from both FandomWire and Anime Corner since the spring season shows intense fan engagement with these specific scene-stealers. This final ranking wraps up a massive year for secondary roles as the industry moves toward awards season. The full list is available for review on IMDb.