Ultimate List: Top 16 Anime Sidekick Characters

Anime isn’t just about the lead protagonists. The narrative gets an extra layer of excitement and depth from the secondary characters, particularly the sidekicks who often steal the show with their humor, grit, and unique abilities.

These anime sidekick characters have become as beloved as the heroes, providing much-needed comic relief and moral support and often surprising us with their unexpected heroics.

Their quirks, personas, and relationships with the main characters weave into the plot, creating an integral part of the anime universe that fans can’t get enough of.

Dive into the anime world and explore the top sidekick characters significantly impacting this rich and diverse genre.

Anime Sidekick Characters

In this section, we’ll navigate the realm of anime, spotlighting our favorite sidekick characters. From loyal friends to sarcastic partners-in-crime, these characters bring more than support; they add charm, depth, and unforgettable moments to their respective series. Let’s delve into their captivating stories!

1. Pikachu – Pokemon

Pikachu – Pokemon

Pikachu doesn’t need much introduction as the face of the global sensation Pokemon. Serving as the steadfast sidekick to Ash Ketchum, Pikachu embodies loyalty, courage, and power – qualities that often go unnoticed due to his adorable facade.

Despite being small in size, Pikachu’s electrifying abilities make him a formidable contender in any battle, often surprising opponents with his agile moves and powerful electric attacks.

His bond with Ash is the cornerstone of the series, highlighting friendship, trust, and mutual respect. From their first hesitant encounter to becoming inseparable companions, their journey encapsulates the essence of Pokemon: the indomitable spirit of partnership and adventure.

2. Joey Wheeler – Yu-Gi-Oh

Joey Wheeler – Yu-Gi-Oh

A heartwarming character from the classic series Yu-Gi-Oh, Joey Wheeler is the quintessential sidekick and best friend to Yugi Muto. Although initially presented as a comic-relief character, Joey’s character development is profound. He evolves from a street-smart, rough-around-the-edges guy into a brave and selfless Duel Monsters player.

Joey’s unwavering loyalty to his friends and steadfast determination proves he’s more than just comic relief. He often jumps into danger without hesitation, using his wit and instinct rather than strategic expertise to triumph. This depth makes Joey a beloved character among Yu-Gi-Oh fans.

3. Genos – One Punch Man

Genos – One Punch Man

Genos from One Punch Man is not your typical sidekick. He’s a cyborg who thirsts for justice and revenge, serving as a disciple and sidekick to the titular character, Saitama. Despite his stern demeanor and fierce battle skills, Genos respects and admires Saitama, even in the face of his casual, carefree attitude.

Genos’s story unfolds throughout the series, providing moments of gravity and contemplation that balance Saitama’s more light-hearted approach. His raw power, unwavering determination, and willingness to sacrifice for the greater good make Genos a remarkable sidekick and a crucial part of One Punch Man’s unique charm.

4. Ken Ryuguji or Draken – Tokyo Revengers

Ken Ryuguji or Draken – Tokyo Revengers

In Tokyo Revengers, Ken Ryuguji, better known as Draken, is the right-hand man of the series’ protagonist, Takemichi Hanagaki. Draken’s intimidating stature and dragon tattoo can mislead many into viewing him as a cold, hard character. However, beneath this rugged exterior lies a steadfast loyalty and a profound sense of justice.

Draken often serves as the voice of reason within their gang, offering invaluable advice to Takemichi and always standing by his side in the face of adversity. His character complexity, a blend of toughness and sensitivity, is masterfully portrayed, making Draken a fan-favorite sidekick in the anime world.

5. Killua Zoldyck – Hunter X Hunter

Killua Zoldyck – Hunter X Hunter

Killua Zoldyck from Hunter X Hunter is an archetype of an anime sidekick done right. Born into a notorious assassin family, Killua is incredibly skilled and deeply conflicted. His friendship with the series protagonist, Gon, softens his hardened personality, providing a heartening study of a bond that transcends backgrounds.

Despite his lethal abilities and ruthless instincts, Killua’s vulnerability and loyalty toward Gon make him incredibly relatable and lovable. As their adventures unfold, Killua’s character complexities are unveiled, keeping the audience engaged in his personal journey. His fierceness, gentleness, and unwavering loyalty make Killua an unforgettable anime sidekick.

6. Robert E. O. Speedwagon – JoJo’s Bizarre Adventure

Robert E. O. Speedwagon – JoJo’s Bizarre Adventure

Robert E. O. Speedwagon is an iconic character in the expansive world of JoJo’s Bizarre Adventure. Initially introduced as a hostile character, his encounter with Jonathan Joestar transformed him into a steadfast ally and a loyal friend. His transformation from a street thug to a trustworthy confidant is one of the series’ most compelling arcs.

Speedwagon’s unwavering loyalty, keen sense of morality, and heartfelt dedication to the Joestar family extend beyond the series’ initial season. His narrative importance and larger-than-life personality have made him one of the most cherished sidekicks in the JoJo franchise.

7. Shark – Yu-Gi-Oh!

Shark – Yu-Gi-Oh!

Reginald “Shark” Kastle from Yu-Gi-Oh! ZEXAL is a prime example of a sidekick with depth and evolution. Initially portrayed as an antagonist, Shark evolves into an ally and a key character as the series progresses. Shark is known for his impressive Duel Monsters skills, determined spirit, and transition from an aloof and hostile character to a loyal friend to Yuma.

Shark’s narrative arc offers a captivating insight into his character, revealing layers of his past and personality that add depth to the series. His character arc, from a bitter rival to a dependable ally, keeps viewers hooked and showcases the transformative power of friendship.

8. Migi – Parasyte

Migi – Parasyte

In Parasyte: The Maxim, Migi stands out as an unusual sidekick. A sentient parasitic being living in the protagonist Shinichi’s hand, Migi is a unique blend of friend and foe. Despite their initial antagonistic relationship, Migi and Shinichi develop a symbiotic relationship necessary for survival.

Migi’s inquisitive nature and alien perspective often add philosophical depth to the series, pondering human nature and morality. While Migi’s logical approach contrasts sharply with Shinichi’s emotional reactions, this dichotomy drives the narrative’s suspense and intrigue, creating a sidekick character that remains memorable long after the series concludes.

9. Nicholas D. Wolfwood – Trigun

Nicholas D. Wolfwood – Trigun

Nicholas D. Wolfwood from the renowned anime Trigun is a character imbued with depth and contrast. On the surface, he’s a traveling priest with a giant cross, but that cross conceals an arsenal of weapons, a poignant metaphor for his own dichotomy.

Wolfwood becomes a loyal companion to Vash the Stampede, the series’ protagonist, and his more pragmatic and lethal approach often clashes with Vash’s pacifist principles.

But underneath his tough exterior and hardened survivor instincts, Wolfwood carries a deep sense of guilt and moral turmoil, making him an exceptionally engaging character. His devotion to protecting the innocent and gradual evolution throughout the series paints a complex portrait of a sidekick who is much more than a supporting character.

10. Nezuko – Demon Slayer

Nezuko – Demon Slayer

In Demon Slayer, Nezuko Kamado is a crucial character who captivates audiences with her unique charm and formidable strength. Transformed into a demon yet retaining her human emotions thanks to her brother Tanjiro’s love, Nezuko becomes an integral ally in his quest to avenge their family.

Despite her demonic form, Nezuko’s innate kindness, protective nature, and determination shine through, endearing her to viewers. Her struggle to retain her humanity, sibling bond with Tanjiro, and fierce combat skills make Nezuko a compelling sidekick and standout character in anime.

11. Happy – Fairy Tail

Happy – Fairy Tail

The presence of Happy, the small, blue, winged cat and the faithful companion of the protagonist Natsu Dragneel brightens the world of Fairy Tail. True to his name, Happy is a source of joy, laughter, and light-heartedness in the series, often offering comic relief amidst intense battles.

But Happy is more than a cute mascot. His unwavering loyalty to Natsu, courage in the face of danger, and ability to fly aiding in countless situations, make him an invaluable sidekick. Despite his small size, Happy’s big heart and unwavering spirit leave a huge impact.

12. Krillin – Dragon Ball Z

Krillin – Dragon Ball Z

Krillin in Dragon Ball Z is a testament to the power of perseverance and friendship. A long-time friend and ally of Goku, Krillin’s bravery and determination often outshine his physical strength. He may not be the most potent fighter, but his resourcefulness, quick thinking, and loyalty have proven invaluable in many battles.

Krillin’s journey from a jealous rival to Goku’s best friend is a heartfelt narrative that echoes throughout the series. While his bald head and six dots may make for a unique look, his endearing personality and unwavering courage make Krillin one of the most beloved sidekick characters in anime history.

13. Zenitsu – Demon Slayer

Zenitsu – Demon Slayer

Zenitsu Agatsuma from Demon Slayer is a character who wears his heart on his sleeve. Characterized by his fearfulness and penchant for falling asleep in the face of danger, Zenitsu may not seem like a typical sidekick. But his true potential reveals itself when unconscious, showcasing his incredible skills as a Demon Slayer.

Despite his comedic demeanor and seemingly cowardly nature, Zenitsu is loyal and deeply caring toward his friends. His internal struggle between his self-doubt and heroic alter-ego and his unwavering commitment to protecting those he cares for make Zenitsu a unique sidekick in anime.

14. Alphonse Elric – Fullmetal Alchemist

Alphonse Elric – Fullmetal Alchemist

Alphonse Elric of Fullmetal Alchemist is a heartrending figure—a soul bound to a suit of armor after a disastrous alchemical experiment. Despite his intimidating appearance, Alphonse is gentle and compassionate, often serving as the moral compass to his elder brother, Edward.

He brings a mix of innocence and wisdom to the narrative, offering a contrasting perspective to Edward’s more driven and stubborn demeanor. His sacrificial love for his brother, his ongoing struggle for his lost body, and his philosophical insights contribute significantly to the emotional depth of the series, making Alphonse a compelling sidekick.

15. Seras Victoria – Hellsing Ultimate

Seras Victoria – Hellsing Ultimate

In Hellsing Ultimate, Seras Victoria starts as a young police officer turned unwilling vampire. Under the wing of her master Alucard, she learns to navigate her new existence, adding a touch of humanity to the dark narrative. Her transformation from a naive rookie to a formidable vampire warrior showcases her resilience and willpower.

Despite the horrific circumstances, Seras maintains a kind heart, often providing a more compassionate perspective in a ruthless world. Her loyalty to her allies struggles with her vampire nature, and her impressive combat abilities make her an engaging sidekick in the gothic universe of Hellsing Ultimate.

16. Armin Arlert – Attack On Titan

Armin Arlert – Attack On Titan

Armin Arlert from Attack On Titan proves that physical strength isn’t the only attribute that counts in a sidekick. A childhood friend of the protagonist Eren Yeager, Armin is initially portrayed as physically weak and fearful. However, his keen intellect, strategic prowess, and courage under pressure make him invaluable in humanity’s fight against the Titans.

Armin’s strategic insights have turned the tides of several battles, and his character evolution—from a hesitant boy to a determined soldier—is one of the series’ most engaging narratives. His emotional resilience and intellectual acuity highlight the power of the human spirit, cementing Armin as an unforgettable sidekick character.

Final Thoughts

In exploring anime’s most compelling sidekicks, we’ve journeyed through diverse universes and narratives, meeting characters that offer more than mere support to their protagonists.

From steadfast companions like Pikachu and Alphonse Elric to conflicted figures like Zenitsu and Nicholas D. Wolfwood, these sidekicks add depth, charm, and unforgettable moments to their respective series.

Each character’s unique attributes—bravery, loyalty, strategic prowess, or comic relief—enhance the richness of the anime world. They prove that sidekick characters are integral to the narratives, their significance and impact resonating long after the series concludes.