Cyril Eagle

A bald eagle and the eldest member of the Substitute Freedom Fighters. Sonic encountered him during one of his many missions, and the elderly eagle thought himself the last eagle on Mobius to survive Robotnik's predations. Too weary to even fly, Cyril had all but given up, but Sonic motivated him to try flapping his wings again. Amazingly, Cyril got the hang of it again, and even found surviving members of his rookery. Together, they helped Sonic survive one of Robotnik's many attacks.

Cyril later appeared in Knothole and was training the other Substitute Freedom Fighters when Larry Lynx arrived with dire news about Sally's group of Freedom Fighters. Despite his advanced age, the eagle willingly submitted to Larry's command and followed the others in liberating their trapped friends.