Zabuza was a tall and noticeably muscular man with pale skin, short spiky black hair, brown eyes, and small eyebrows. He was normally seen wearing bandages like a mask over the bottom half of his face. Under his mask, he had a relatively narrow jawline and jagged-teeth, a trait he shared with his fellow Swordsmen. He wore his forehead protector sideways on his head, and prior to his defection from the Hidden Mist Village, donned the village's standard uniform and flak jacket. After his defection, and during his first appearance, he was seen shirtless, with his chest only covered by a belt to which he attached his Kubikiribocho, wearing baggy pants with the striped pattern typical of the Hidden Mist Village and mimetic wrist-warmers extending up to his elbows, with matching leg-warmers.
During his second appearance, he wore a sleeveless black shirt and matching pants, complete with a waist-guard, and yet again, Hidden Mist Village's striped wrist and leg-warmers. Other swordsmen of his generation wore attire identical to this, implying that they might be clothes related to the group. While donning this attire, much like his fellow Swordsmen, he had bandages loosely tied around his neck like a scarf.
Zabuza was initially portrayed as aggressive, arrogant, cruel, cold and ambitious, willing to become Gato's thug to gain enough funds to start a second coup d'état on the Mizukage, and kill anyone who stood in his path, including plotting to kill Gato once he had received enough funds from him. His reputation for cruelty and ruthlessness began as a child where he killed every single candidate in the Hidden Mist Village's Ninja Academy, earning him the moniker of "Demon of the Hidden Mist". He willingly uses his own men and others as pawns to fulfil his ambitions, as he raised Haku to be an efficient tool to be discarded when he had no use to exploit; although unlike future antagonists, he was blunt about the purpose that his recruits were needed for, lacking the manipulation of pretending to be benevolent to inspire loyalty.
He is an observant adversary who is able to analyze his opponent's techniques after seeing it once, but becomes overconfident if he sees the technique as useless. In his last moments, it is revealed that he cared deeply for Haku, and after being convinced by Naruto, he sacrifices his life to kill Gato, and dies wishing he could join Haku in the afterlife. However, he seems reluctant to speak or hear about it, telling whoever does so to shut up. Kakashi has also noted that Zabuza had hesitated for a moment before the thought of slashing through Haku to get to Kakashi during their battle on the bridge; the lack of hesitation during the Fourth Shinobi War made Kakashi know that the controlled Zabuza was completely different.
He has also shown a sense of honor, as seen after his reincarnation when he expressed disgust about the idea of working for anyone who would stoop down so low as to use the dead as their tools, in the meantime making the revived immortal. His sense of honor is extended even further when he pleads with Kakashi to stop him, and Haku from causing damage.
Kenjutsu Master: During his time as a Hidden Mist Ninja, Zabuza was one of the Seven Swordsmen of the Mist, a group composed of the village's top swordsmen. The generation of swordsmen he belonged to was noted as the strongest ever produced within the Hidden Mist Village, a further testament to Zabuza's impressive skills. Zabuza's signature weapon was the Kubikiriocho, an over-sized broad sword, whose shape was thought to decapitate enemies. This large weapon has the unique ability to absorb and utilise the iron from all the blood it sheds, from whoever it cuts, in order to reform itself if damaged or broken. Zabuza was a master in its use, being capable of dispatching numerous enemies with a few slashes, and claiming that his sword "never cut a second time", implying to have killed a large number of people with a single attack.
- Expert Hand-to-Hand Combatant:
- Immense Strength:
- Enhanced Speed:
- Immense Endurance:
- Immense Durability:
Master of Stealth and Assassination: