Sinbad the Sailor

Sinbad is the doppelganger of Knuckles the Echidna within the world of Sonic and the Secret Rings. He generally looks the same, except that he sports the Arabian white I'gal (the headpiece that is mainly worn by Saudi Arabians), a white robe or in Arabic "Dishdasha", gray metal wristlets, a tanner muzzle, and emanates a somewhat Arabic feel from him. He and Sonic first met when Shahra recommended to seek him out for his Water Blue Ring of Joy that could manipulate storms. He is still just as stubborn as Knuckles which is why he started to fight with Sonic when he insulted his suggestion to pour water over the Ifrit. Another note of Sinbad's likeliness to Knuckles is that they are both Treasure Hunters.

Quotes
"Now, about the fire genie... why not try splashing some water on him?" Sinbad suggesting an idea to defeat the Ifrit Golem.

"Okay! Any day now, thanks!" Sinbad "wishing luck" for Sonic and Shahra to save him.

"Life's a game of give and take, see? You free me, and I'll help you out later." Sinbad urging Sonic to free him.

Trivia

 * Compared to his Sonic-World counterpart, Sinbad is more intelligent, in terms of solutions to defeat an enemy.