Sofía is a ferret belonging to Marseille. She assists the robbers once Rio is returned to the group. She is given Rio's tracking and surveillance chip, and sent throughout the tunnels underneath the Bank of Spain with it to trick Alicia Sierra and Luis Tamayo. She is captured once the police are able to locate her.
Sofía looks like a ferret. She has brown and white fur. She also has her own little red jumpsuit.
- Denver referred to Sofía as a rat in It's Dolphin Time.
- Sofia is the capital of Bulgaria, so Sofía follows the code of using city names. However this likely wasn't on purpose, considering Marseille seemingly owned the ferret prior to the heist, and unlike other city names, Sofía is also a common female name, for example two spanish royals have that name.