From Sonic Retro
|Series: Sonic Underground|
|First seen: "Tangled Webs"|
Cyrus is a character that appears in Sonic Underground.
At some point, Cyrus befriended Sonic the Hedgehog. Some time later, Dr. Robotnik forced Cyrus to work for him or else Robotnik would robotize Cyrus's father. However, Cyrus betrayed Robotnik after he heard that the Sanctuary was the hiding place for children. Robotnik then robotized Cyrus's father. After that Cyrus would occasionally help the resistance in foiling Robotnik's plans.
|Sonic Underground characters|
|Main||Sonic the Hedgehog | Sonia the Hedgehog | Manic the Hedgehog | Dr. Robotnik | Dingo | Sleet|
|Recurring||Knuckles the Echidna | Queen Aleena Hedgehog|
|Others||Bartleby | Cyrus | Uncle Chuck|