Mrs. Fang

Mrs. Fang is Gaterboy and Porcupine's mother. She doesn't have any animal-like characteristics like her children, but Gaterboy and Porcupine claim that they take after her husband (which implies that their father might be an alien of some sort). She was taken hostage by the mob as insurance that her kids would take part of a contest and win money that she owed to them. She was at last saved by her kids with the assistance of Ben. She makes her first appearance in Ready to Rumble and hasn't appeared in another episode since then.

Trivia

 * It is likely her children are human/alien hybrids, indicating their father was likely an alien (and could possibly be a member of the Plumbers).