Doubloon is a general of Sky Pirate Crew and one Nadakhan's minion in Lego Ninjago: Masters of Spinjitzu.
He is the only Sky Pirate who knows how to use Spinjitzu. When Nadakhan was exempt, he freed him and Flintlocke, Clancee and Dogshank.
After that Nadakhan returned to home in Djinjago, but when he got there, it was to be destroyed when the Cursed Realm had been destroyed. When they returned to Ninjago, Nadakhan vowed that Ninjago get paid for Ninja's acts. And later in final episode Nadakhan expelled him and Monkey Wrentch again. And later when Jay hoped that Teapot of Tyrahn would be found, time returns back the days when Clouse, who fled in the Cursed Realm found it.
When citizenry of Stiix found him, they began to chase him, and so Clouse could not release the Nadakhan, and Sky Pirate Crew was trapped again. Nadakhan rages he was always grateful for his crew's loyalty and devotion, although confirming his real intent, and proceeds to banish Clancee, Doubloon, and Monkey Wretch to separate realms. Even as the Ninja are forced to flee, Clancee, having a change of heart, tells them the location of the Tiger Widow venom. Nadakhan, enraged, demands to know why Clancee betrayed him, prompting the latter to confront him over his selfishness and confirming his planned mutiny.