Sinbad is an alternate reality version of Knuckles the Echidna from the Arabian Nights zone. He's a brave pirate adventurer who aides Sonic the Hedgehog in his battle against the Erazor Djinn. (SatSR)
- Sinbad is based on the character of the same name who appears in the 1001 Arabian Nights story. His appearance here is based on his counterpart in the Nintendo Wii game Sonic and the Secret Rings, where Knuckles takes on his role.