|Series||Kaizoku Sentai Gokaiger|
|First appearance||Goseiger VS Shinkenger|
|Catchphrase||Let's make it showy!|
|Rival(s)||Basco ta Jolokia|
Played by Ozawa Ryouta (小澤亮太)
Main leader / First member of the series, Kaizoku Sentai Gokaiger.
The captain of the GokaiGalleon. His goal is to find the Greatest Treasure in the Universe.
After successfully attacking a group of Zangyack soldiers, Marvelous found the AkaRanger Ranger Key. Not long after, AkaRed showed up and asked Marvelous to join him in his quest to gather all of the Ranger Keys, and find the Greatest Treasure in the Universe. Marvelous accepted and he, AkaRed and Basco ta Jolokia became the Akaki Pirates.
However, Basco later hired by Damarasu and allied with the Zangyack and betrayed his fellow Akaki Pirates in the hopes of getting the treasure for himself. Marvelous escaped from the ambush but is later cornered by Zangyack forces. He is saved by AkaRed who tells him to journey to Earth and find the Greatest Treasure in the Universe. AkaRed then sacrificed himself to save Marvelous and he vowed to complete AkaRed's quest to find the treasure.
In episode 28, he faced the deadliest bounty hunter Kiaidou. The two had previously fought, but Marvelous was defeated and almost froze in fear when Kiaidou appeared before him again. However he later regained his courage thanks to Black Condor, and he and the other Gokaigers were able to defeat Kiaidou with the power of the Jet Phoenix.
When he was a child, he stowed away in a cargo ship which came under attack by the Zangyack fleet. He decided to flee but there wass no way out, as flames blocked his way. But Space Sheriff Gavan, Ichijouji Retsu, helped him to jump over the flames and rescued him.
He is the great emperor of Dai Zangyack who seeks to find the Ultimate Treasure in the Universe and to defeat all Kamen Riders. But it turns out to be his plan with Kadoya Tsukasa to defeat the two evil organizations, Dai Shocker and Dai Zangyack.
- 1 million zagins (during flashbacks)
- 1.5 million zagins (Ep. 1)
- 3 million zagins (Ep. 5)
- 5 million zagins (Ep. 15)
- Unlimited Reward (Ep. 39)