In Sonic the Hedgehog 2, it is confirmed that Knuckles is the last of the Echidna Tribe, a group whose main mission was to take back the Master Emerald that was stolen from them by the Owls.

Knuckles, Paramount Plus’ episodic spinoff ... buff to forget that an entire six-episode series starring the Master Emerald guardian is dropping next week. One person who has not forgotten ...