|This character exists primarily or exclusively within the Pre-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Semper Fidelis is a member of the Fire Ant Advisory Council to the Brotherhood of Guardians, like Deo Volente and Archimedes, that appears in the Sonic the Hedgehog comic series published by Archie Comics. Presumably, he is Deo Volente's son and Archimedes' father.
Semper Fidelis has brown skin and blue eyes, and wears a grey hat similar to Archy's, with a matching vest and pair of boots. He also has a short-sleeved, white button-up shirt and carries a three-tailed whip.
- Semper fidelis is a Latin phrase meaning always faithful. It is used as the motto of various organizations, such as the United States Marine Corps.