Kōhei Amasaki is a voice actor (seiyuu) from Osaka Prefecture, Japan, affiliated with I'm Enterprise.
Known For
Credits
Cast Credits
There Was a Cute Girl in the Hero's Party, So I Tried Confessing to Her (2026)
Starring as Youki
(12 episodes)
- Episode 1x13: I Tried Being in a... with My Crush (Mar 31, 2026)
- Episode 1x12: I Tried Listening to My Crush's Arranged Marriage Plan (Mar 24, 2026)
- Episode 1x11: I Tried Watching Over My Friend and My Former Subordinate (Mar 17, 2026)
- Episode 1x10: I Tried Hearing Out the Guardian Deity's Troubles (Mar 10, 2026)
- Episode 1x09: I Tried Learning More About the Girl I Love (Mar 3, 2026)
- Episode 1x08: I Tried Saving a Mermaid (Feb 24, 2026)
- Episode 1x07: I Tried Receiving Chocolates (Feb 17, 2026)
- Episode 1x05: I Tried Being a Demon Again (Feb 3, 2026)
- Episode 1x04: I Gave the Hero a Lecture (Jan 27, 2026)
- Episode 1x03: I Tried Giving Love Advice (Jan 20, 2026)
- Episode 1x02: I Tried Going on a Date (Jan 13, 2026)
- Episode 1x01: I Tried Confessing (Jan 6, 2026)
Tamon's B-side (2025)
Starring as Natsuki Ishibashi
(2 episodes)
- Episode 1x03: You're One of Those Insane Fans (Jan 14, 2026)
- Episode 1x01: You Need Money to Support Your Oshi! (Dec 31, 2025)
Hero Without a Class: Who Even Needs Skills?! (2025)
Guest starring as Redora Akamen
(2 episodes)
- Episode 1x11: Classless Hero (Dec 3, 2025)
- Episode 1x10: The Demon's Contract (Nov 26, 2025)
Witch Watch (2025)
Starring as Kanshi Kazamatsuri
(2 episodes)
- Episode 1x04: Kanshi Kazamatsuri, the Tengu (Apr 27, 2025)
- Episode 1x03: Fresh Transparent / Fashions for Spring / Witch's Delivery Service / Lost Dogs and the Patter of Rain (Apr 20, 2025)
The Too-Perfect Saint: Tossed Aside by My Fiancé and Sold to Another Kingdom (2025)
Starring as Julius Girtonia
(11 episodes)
- Episode 1x12: The Too-Perfect Saint: Tossed Aside by My Fiancé, Now in Another Kingdom (Jun 18, 2025)
- Episode 1x11: Archdemon Asmodeus (Jun 11, 2025)
- Episode 1x10: What I Wish to Protect (Jun 4, 2025)
- Episode 1x09: Crossroads of Fate (May 28, 2025)
- Episode 1x08: With You, Who Gave Me Gourage (May 21, 2025)
- Episode 1x06: Reason and Emotion (May 7, 2025)
- Episode 1x05: Golden Freesia (Apr 30, 2025)
- Episode 1x04: Feelings Entrusted (Apr 23, 2025)
- Episode 1x03: Our First Date (Apr 16, 2025)
- Episode 1x02: Welcome to Parnacorta (Apr 9, 2025)
- Episode 1x01: The Saint Who Never Smiled (Apr 2, 2025)
Murai no Koi (2024)
Guest starring as Kiriyama, Akifumi
(12 episodes)
- Episode 1x12: Episode 12 (Nov 20, 2024)
- Episode 1x11: Episode 11 (Nov 13, 2024)
- Episode 1x10: Episode 10 (Nov 6, 2024)
- Episode 1x09: Episode 9 (Oct 30, 2024)
- Episode 1x08: Episode 8 (Oct 23, 2024)
- Episode 1x07: Episode 7 (Oct 16, 2024)
- Episode 1x06: Episode 6 (Oct 9, 2024)
- Episode 1x05: Episode 5 (Oct 2, 2024)
- Episode 1x04: Episode 4 (Sep 25, 2024)
- Episode 1x03: Episode 3 (Sep 18, 2024)
- Episode 1x02: Episode 2 (Sep 11, 2024)
- Episode 1x01: Episode 1 (Sep 4, 2024)
Wistoria: Wand and Sword (2024)
Starring as Will Serfort
(24 episodes)
- Episode 2x12: A Story of a Dream With No End (Jun 28, 2026)
- Episode 2x11: A Roar of Ice and Lightning (Jun 21, 2026)
- Episode 2x10: Hoping, Blooming, Thundering (Jun 14, 2026)
- Episode 2x09: The Page to Be Turned (Jun 7, 2026)
- Episode 2x08: Teachings of the Witch (May 31, 2026)
- Episode 2x07: He Said He Would No Longer Hang His Head (May 24, 2026)
- Episode 2x06: The First Bloom (May 17, 2026)
- Episode 2x05: The Day of Departure (May 10, 2026)
- Episode 2x04: And the Story Begins (May 3, 2026)
- Episode 2x03: One Single Magic Spell (Apr 26, 2026)
- Episode 2x02: The Party from Hell Begins (Apr 19, 2026)
- Episode 2x01: Barrier Day (Apr 12, 2026)
- Episode 1x12: Wand and Sword (Sep 29, 2024)
- Episode 1x11: The True Name of Cowards (Sep 22, 2024)
- Episode 1x10: Our Dream (Sep 15, 2024)
- Episode 1x09: Praxis Begins (Sep 8, 2024)
- Episode 1x08: Shall We Date? (Sep 1, 2024)
- Episode 1x07: Twelve Secret Ice Magics, El Glace Frosse (Aug 25, 2024)
- Episode 1x06: Between Pride and Passion (Aug 18, 2024)
- Episode 1x05: Raise the Starting Pistol (Aug 11, 2024)
- Episode 1x04: The Eve of the Grand Festival (Aug 4, 2024)
- Episode 1x03: Order & Watcher (Jul 21, 2024)
- Episode 1x02: As Though Undaunted (Jul 14, 2024)
- Episode 1x01: Like a Lone Sword (Jul 7, 2024)
Alya Sometimes Hides Her Feelings in Russian (2024)
Starring as Masachika Kuze
(12 episodes)
- Episode 1x12: Chin Up and Face Forward (Sep 18, 2024)
- Episode 1x11: An Unexpected Curtain-Raiser (Sep 11, 2024)
- Episode 1x10: Birthday Party, Much Belated (Sep 4, 2024)
- Episode 1x09: Rom-com with a Chance of Hypnosis (Aug 28, 2024)
- Episode 1x08: Student Congress (Aug 21, 2024)
- Episode 1x07: A Storm Arrives (Aug 14, 2024)
- Episode 1x06: A Kiss of the Indirect Variety (Aug 7, 2024)
- Episode 1x05: Different People, Common Undercurrent (Jul 31, 2024)
- Episode 1x04: An Outpouring of Emotion (Jul 24, 2024)
- Episode 1x03: And So They Met (Jul 17, 2024)
- Episode 1x02: So Much for Childhood Friends (Jul 10, 2024)
- Episode 1x01: Alya Hiding Her Feelings in Russian (Jul 3, 2024)
Villainess Level 99: I May Be the Hidden Boss But I'm Not the Demon Lord (2024)
Starring as Oswald Grimsarde
(9 episodes)
- Episode 1x12: The Hidden Boss Battles the Demon Lord (Mar 26, 2024)
- Episode 1x11: The Hidden Boss Is Confessed To (Mar 19, 2024)
- Episode 1x10: The Hidden Boss Enters a Dungeon (Mar 12, 2024)
- Episode 1x09: The Hidden Boss Is Solicited by an Enemy Nation (Mar 5, 2024)
- Episode 1x07: The Hidden Boss Attempts Dancing (Feb 20, 2024)
- Episode 1x06: The Hidden Boss Participates in the Martial Arts Competition (Feb 13, 2024)
- Episode 1x04: The Hidden Boss Attends Field Lessons (Jan 30, 2024)
- Episode 1x02: The Hidden Boss Shows Her True Strength (Jan 16, 2024)
- Episode 1x01: The Hidden Boss Enrolls in the Academy (Jan 9, 2024)
Arknights (2022)
Starring as Mephisto
(12 episodes)
- Episode 3x08: Recall (Aug 22, 2025)
- Episode 3x07: Stain (Aug 15, 2025)
- Episode 3x05: Vengeance (Aug 1, 2025)
- Episode 3x04: Patriot (Jul 25, 2025)
- Episode 2x08: Lullabye (Nov 24, 2023)
- Episode 2x06: Partial Necrosis (Nov 10, 2023)
- Episode 2x05: Resign (Nov 3, 2023)
- Episode 2x04: Salvation (Oct 27, 2023)
- Episode 2x02: Peril (Oct 13, 2023)
- Episode 2x01: Conspiracy (Oct 6, 2023)
- Episode 1x03: Escort (Nov 11, 2022)
- Episode 1x02: Flame (Nov 4, 2022)
2.43: Seiin Koukou Danshi Volley-bu (2021)
Starring as Mitsuomi Ochi
(12 episodes)
- Episode 1x12: Runway (Mar 25, 2021)
- Episode 1x11: The Hero and The Genius 2 (Mar 18, 2021)
- Episode 1x10: The Hero and The Genius 1 (Mar 11, 2021)
- Episode 1x09: The Unbeaten and the Dark Horse (Mar 4, 2021)
- Episode 1x08: Yuni and Chika Re-enter the Battle (Feb 25, 2021)
- Episode 1x07: The Ruling Hero of the Court (Feb 18, 2021)
- Episode 1x06: The Laughing King and Crybaby Jack (Feb 11, 2021)
- Episode 1x05: Stand by Me (Feb 4, 2021)
- Episode 1x04: Higher, Faster, Stronger (Jan 28, 2021)
- Episode 1x03: A Dog's Perspective and a Giraffe's Perspective (Jan 21, 2021)
- Episode 1x02: The Best and Worst Playmaker (Jan 14, 2021)
- Episode 1x01: The Boys, Yuni and Chika (Jan 7, 2021)
The Rising of the Shield Hero (2019)
Starring as Fohl Fayon
(10 episodes)
- Episode 3x12: The Ones We Must Protect (Dec 22, 2023)
- Episode 3x09: Emperor Dragon (Dec 1, 2023)
- Episode 3x08: Dragon's Den (Nov 24, 2023)
- Episode 3x07: The Girl and the Dragon (Nov 17, 2023)
- Episode 3x06: Where You Point Your Strength (Nov 10, 2023)
- Episode 3x05: Each of Their Paths (Nov 3, 2023)
- Episode 3x04: The Operation to Capture the Spear Hero (Oct 27, 2023)
- Episode 3x03: The White Tiger Siblings (Oct 20, 2023)
- Episode 3x02: Nadia (Oct 13, 2023)
- Episode 3x01: The Dark Coliseum (Oct 6, 2023)
One Piece (1999)
Guest starring as Fourtricks
(2 episodes)
- Episode 2022-01-16: I Won't Forgive Him! Chopper's Determination! (Jan 16, 2022)
- Episode 2021-07-11: Kaido's Trump Card! The Tobi Roppo Appear! (Jul 11, 2021)