Tobor

Tobor is the son of Guardian Hawking and the father of Guardian Spectre. His tenure as Guardian of the Echidnas was cut short by a battle with the Dark Legion under Moritori Rex, which resulted in both sustaining heavy wounds. Moritori was taken back to Echidnaopolis after being mistaken for Tobor, while Tobor ended up wandering on the surface of Mobius. He had his damaged eyes replaced with cybernetic implants, and would eventually return to Angel Island years later and meet his descendant Knuckles. After a battle with Dark Legion Grandmaster Kragok, he was trapped for some time in the Twilight Zone before escaping and ending up killing both Kragok and himself in a suicide attack on the Legion's battlecruiser.

Failure as a Guardian
Tobor was appointed Guardian of the Echidnas by his father Hawking after the city was brought to another dimension to save it from nuclear fallout.