Ginij Matsuzaki was the acting wakagashira (underboss) of Washimine Group, and is Yukio's most loyal and humble personal body guard, and possibly love interest.
He is voiced by Kiyoyuki Yanada in the Japanese version of the anime and Michael Adamthwaite in the English version.
He works as a street stall vendor, but was formerly an assassin nicknamed "Hitokiri Ginji" (Manslayer Ginji) due to his use of a katana in combat. His skills in its use are exceptional, manifesting themselves in such feats as cleaving bullets in two in midflight. Coupled with his ability to evade gunfire from multiple foes, Ginji almost completely eschews the use of firearms.
Ginji had protected Yukio for a long time and hoped that she would live out her life normally despite her family's criminal background. He seems to regret his past as a murderer, but is willing to take up arms again for those he cares for. He is killed by Revy in a prearranged duel after he and Yukio realize that they cannot defeat Balalaika and the rest of Hotel Moscow.
So far, Ginji is the only one whom Revy admits had the perfect chance to kill her. After shattering Revy's cutlass and forcing her to fall back, Ginji proceeds to stab Revy in spot; if he was not distracted by Yukio, Revy would have had no way to defend herself. Ginji is also the only opponent of Revy's who maintains sanity till the end; Roberta's sanity deteriorates rapidly after the death of Diego Lovelace.
It is interesting to note that although Revy calls Ginji "Jumbo" because of his height, the name "Jumbo" may also refer to Takeshi Takeda (AKA "Jumbo") from the Yotsuba&! manga series with whom he shares an uncanny resembalance.