Hello anime fans! If you’re craving some high-octane action anime that might have flown under your radar, you’ve come to the right place.
In this article, we’re highlighting 10 fantastic action anime that are often considered underrated gems, perfect for expanding your watchlist.
Let’s get started!
Note: Image via IMDB
10. Blue Eye Samurai

Details: Blue Eye Samurai is a visually stunning historical action anime set in Japan’s Edo period. The protagonist is Mizu (note: you mentioned “Hana” but the character’s name is Mizu), a mixed-race samurai driven by a quest for revenge. The anime masterfully blends historical drama with breathtaking sword-fighting sequences and a unique artistic style. Mizu’s journey is filled with unexpected twists and epic battles, solidifying its place as a top-tier sword-fighting action anime.
- Season: 1 Episodes: 8 (Completed)
- Genres: Action, Adventure, Drama, Historical
- Sub/Dub: Dub Available
09. Inuyashiki

Details: Inuyashiki tells the compelling story of two individuals who gain extraordinary powers after an alien encounter: Ichiro Inuyashiki, an aging and often overlooked middle-aged man, and Hiro Shishigami, a seemingly ordinary high school student. However, they choose drastically different paths. Hiro decides to use his newfound abilities for destruction, while Ichiro resolves to use his powers to protect humanity. Their contrasting ideologies lead to intense and emotionally charged confrontations, exploring the profound question of responsibility that comes with great power, reminiscent of Uncle Ben’s words in Spider-Man. This anime is a truly underrated gem that offers a thought-provoking narrative alongside its action.
- Season: 1
- Episodes: 11
- Genres: Action, Drama, Psychological, Sci-Fi
- Sub/Dub: Sub Available
08. K Project

Details: K Project is a visually captivating anime centered around a conflict between seven powerful Kings, each possessing unique supernatural abilities and their own loyal Clans. Yashiro Isana, an seemingly ordinary high school student, finds himself caught in the middle of this deadly power struggle. The anime boasts vibrant animation, stylish fight choreography, and a unique storyline. Despite its strengths, K Project remains somewhat underrated within the action and supernatural genres. The “Seven Movies” you mentioned likely refers to side stories and recap films that expand on the main series.
- Seasons: 2
- Episodes: Season 1: 13, Season 2: 13 + Several Movies
- Genres: Action, Superpower, Supernatural
- Sub/Dub: Dub Available
07. The Witch and the Beast

Details: The Witch and the Beast follows Guideau, a fierce warrior cursed with a beastly form, and Ashaf, a mysterious man with hidden powers. Together, they embark on a mission to break Guideau’s curse, which leads them to hunt down witches. If you enjoy action with elements of dark fantasy, featuring unique characters and a quest-driven narrative, this hidden gem is worth checking out.
- Season: 1
- Episodes: 12
- Genres: Action, Fantasy, Seinen
- Sub/Dub: Dub Available
06. Ragna Crimson

Details: Ragna Crimson is a dark fantasy action anime about Ragna, a determined dragon hunter, and Crimson, a powerful dragon with enigmatic motives who was once a Dragon King. Despite Ragna’s hatred for dragons, he forms an unlikely alliance with Crimson to confront and defeat the Dragon King. The anime is packed with stunning visuals, intense battles, and a deep, unfolding storyline, making it perfect for fans of action-packed superpower fantasy.
- Season: 1
- Episodes: 24 (Completed)
- Genres: Action, Fantasy, Shounen
- Sub/Dub: Dub Available
05. Sirius the Jaeger

Details: Set in 1930s Tokyo, Sirius the Jaeger follows the “Jaegers,” a group of vampire hunters hired by the city authorities after an increase in vampire activity. Within this group is Yuliy, a young werewolf whose entire village was destroyed by vampires. The anime masterfully combines historical elements with supernatural action, delivering compelling combat scenes and a strong narrative driven by revenge and the mysteries surrounding the vampires and Yuliy’s past. It’s a shame this action-packed anime isn’t more widely known.
- Season: 1
- Episodes: 12
- Genres: Action, Historical, Supernatural, Vampire
- Sub/Dub: Dub Available
04. World Trigger

Details: World Trigger takes place in a world where mysterious gates to another dimension have opened, unleashing powerful monsters known as Neighbors. To combat this threat, the government establishes Border, an organization that utilizes advanced weaponry and strategies. The story primarily follows Osamu Mikumo, a Border trainee, and his enigmatic friend Yuma Kuga as they and the rest of Border defend their city from the Neighbor incursions. The anime is known for its strategic fights and well-developed team dynamics.
- Seasons: 3
- Episodes: Season 1: 73, Season 2: 12, Season 3: 14
- Genres: Action, School, Sci-Fi, Shounen, Supernatural
- Sub/Dub: Dub Available
03. Akudama Drive

Details: Akudama Drive is set in a visually striking dystopian future where a seemingly ordinary person gets caught up with a group of Akudama – highly wanted criminals – who are contacted for a dangerous mission with a hefty reward. Each Akudama possesses unique strengths and abilities, making the high-risk job even more unpredictable. The anime surprises with its futuristic animation style and intense action sequences, delivering a thrilling and adventurous ride.
- Season: 1
- Episodes: 12
- Genres: Action, Sci-Fi
- Sub/Dub: Dub Available
02. Seraph of the End

Details: Seraph of the End unfolds in a post-apocalyptic world where a mysterious virus has decimated most of the adult human population, leading to the rise of vampires who enslave the survivors. To fight back, humanity forms organizations that hunt vampires using specialized weapons. The story centers on Yuichiro Hyakuya, a young survivor who joins a vampire extermination unit to avenge the loss of his family. The anime combines intense action with elements of drama and the supernatural in a world struggling for survival.
- Seasons: 2
- Episodes: Season 1: 12, Season 2: 12
- Genres: Action, Drama, Shounen, Supernatural, Vampire
- Sub/Dub: Dub Available
01. Ranking of Kings

Details: Ranking of Kings follows the journey of Bojji, a young prince who is deaf, mute, and physically weak, yet dreams of becoming the greatest king. Despite his disabilities and being called the “useless prince,” Bojji possesses a strong will and a pure heart. He finds an unexpected friend in Kage, and together, they navigate a world filled with adversity and formidable enemies as Bojji strives to fulfill his ambition. This anime beautifully blends action, adventure, and fantasy with heartwarming character development.
- Season: 1
- Episodes: 23
- Genres: Action, Adventure, Fantasy
- Sub/Dub: Dub Available