Rogue the bat is a minor antagonist in project chaos, she is a small-time jewel thief that is wanted by the local police and is the closest thing Shadow can consider to be a friend as she helped him out when he had gotten severely injured some time ago. Though their initial interaction was supposed to be a one off meeting. The two often find their paths crossing and they have helped each other out on numerous occasions. Rouge often calls Shadow out for his self destructive behaviour and though he doesn't take her advice, he will tend to listen. Personality wise rouge is snarky, selfish and sarcastic but does care for shadow and silver. 

 Rouge acts as a supporting character to shadows storyline, being the only person who can talk down to him and is a unique role to the cast that the rest of the characters can work off and interact with.