Jiro Momotani (桃谷 ジロウ Momotani Jirō) is a young man who believes himself to be a natural hero and transforms into Don Doragoku (ドンドラゴクウ Don Doragokū), the Sixth Ranger and the Gold Ranger of the Donbrothers. After merging with his original personality, he has evolved into Stable Jiro (安定のジロウ Antei no Jirō)[1] and gains the ability to switch into Don Torabolt (ドントラボルト Don Toraboruto) in battle. Jiro is 21 years old at the time of his first appearance in the series.