Dragon (ドラゴン, Doragon) aka Ryuujirou (リュウジロウ) is the Japanese inmate who is brought to Alcatraz with Firo Prochainezo in 1934. He is actually one of Sham's hosts working for Huey Laforet. The reason he prefers "Dragon" is because "Ryuujirou" is a mouthful for Americans.