Killua is the prodigy heir of the Zoldyck family, a clan of elite assassins who trained him in killing from infancy. When he meets Gon during the Hunter Exam, he is cool, lethally skilled, and quietly desperate to escape the shadow his family cast over him.
Through his friendship with Gon, Killua slowly sheds the conditioning that taught him to flee strong opponents and value nothing. He grows into a fiercely protective companion whose razor-sharp mind and electric Nen abilities repeatedly turn the tide, even as he wrestles with the manipulation buried deep in his past.
His most defining moments come when he chooses his own will over his family's design, confronting his brother's control and learning to act not as a weapon but as a friend. Killua's evolution into someone capable of genuine love and self-sacrifice makes him one of the series' most beloved characters.
Key Episodes
S1 E3
Test x of x Tests
Killua's prodigious abilities and detached confidence come to the fore during the Hunter Exam as his bond with Gon begins to take shape.
S6 E148
Past x and x Future
In the finale, Killua charts a new path of his own choosing, capping a journey from groomed assassin to devoted friend.
Killua Zoldyck is one of the central figures in Hunter x Hunter, a anime/action/adventure series that aired on Nippon TV from 2011-2014. Within the narrative of Hunter x Hunter, Killua Zoldyck serves as a pivotal character whose decisions and relationships drive key story arcs throughout Full series. The character's journey has been central to many of the show's most memorable and discussed moments.
Portrayed by Mariya Ise, Killua Zoldyck has become one of the most recognizable characters in modern television. Mariya Ise's performance brings nuance and depth to the role, creating a character that resonates with audiences on both intellectual and emotional levels. Mariya Ise's work has been recognized with 1 major award, reflecting the critical acclaim their portrayal has received.
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? Frequently Asked Questions
Mariya Ise voices Killua Zoldyck in the Japanese version of Hunter x Hunter.
Killua is the assassin-trained best friend of Gon and a fan-favorite of the series. His struggle to break free of his family's grim legacy and his deepening loyalty give the story much of its heart.