Duo Lon

Duo Lon (Chinese: 堕瓏; Pinyin: Duò Lóng; Japanese: デュオロン Duo Ron, on'yomi: Da Rō) is a video game character in The King of Fighters series, who made his first appearance in The King of Fighters 2003 as a member of the year's Hero Team. He is the first male character from The Flying Brigands to resemble a "handsome" man, and the first to sport an ornate design. His overall look was based on the anime title character Vampire Hunter D. His official nickname is The Silent Assassin.

He is voiced by Tsunehito Maruo in Japanese, and by Josh Keller in the English version of The King of Fighters XII.

Story
He is a member of the assassin group, the Flying Brigands (known as the Hizoku (飛賊, Hizoku) Clan in Japanese), and the half-brother to Xiao Lon. As the son of the clan's leader, he is known as a "prince" and is the eldest of Ron's sons. Like his brothers, he left the village in his youth to train and perfect his art.

After Ron's betrayal, his reputation with the remaining members declined as he was labeled "that traitor's son". Hoping to hunt down the clan's traitor, he partakes in several jobs as an assassin. As he does so, Ash Crimson mysteriously appears before him and makes his acquaintance. Through Ash, Duo Lon also meets Shen Woo. Liking their company enough to be friendly with them, he agrees to enter the 2003 tournament with them, but disappears when he senses Ron's presence. After discovering Ash's true objectives, he teams up with Elisabeth Blanctorche and Benimaru Nikaido to punish his former teammate.

Although he is still dedicated in his mission to hunt Ron, he is curious about Ash's intentions and respectfully parts ways with Benimaru. He meets up with Shen Woo to try to discover anything regarding their former teammate's whereabouts. At a dead end with his search, he remembers that Elisabeth had some connection with Ash and they work together to find her. In their team's ending, both he and Shen Woo respectively give Elisabeth time to mourn over Ash's "death".

Personality
In spite of being a Hizoku assassin, Duo Lon is calm and has a good heart. He also has a strict sense of justice, as shown when he turned on Ash and by his mission to kill his own father. He feels estranged from his father and often does not address him as his parent, preferring to call him "that man" or "Ron". Although he considers Luan his good friend from childhood, their relationship became strained with Ron's betrayal.