Peter Pettigrew (Wormtail, 2019)

Formerly a member of the Marauders along with James Potter, Sirius Black, and Remus Lupin, Peter Pettigrew was forced to act as a spy for Lord Voldemort and his Death Eaters during the First Wizarding War. After the “death” of Voldemort, Pettigrew shifted into his rat form and hid in plain sight with the Weasley family, posing as the family rat Scabbers for years.