Tough, street-smart woman who becomes one of the Batwoman identities.
They perform complementary roles within the three-woman operation.
Kathy finances the Batwoman effort while Rocky builds its gadgetry.
Rocky contributes technology and participates in the shared vigilante identity.
The identity reveal shows Rocky is one of the three women operating as Batwoman.
Their shared living history predates their cooperation as Batwoman.
The film states that Sonia and Rocky were roommates.
Rocky's participation in Batwoman's raids is partly driven by retaliation against Penguin.
The Penguin had framed Rocky's fiancé, giving Rocky a personal grudge against him.
Explore the full interactive character relationship map of Batman: Mystery of the Batwoman