This character has been mentioned only and never actually shown in a comic book or on-screen. Despite their lack of physical appearances, information about them might still be relevant or interesting or at least worthy of documentation. Anything known about them is to be considered second-hand information.

Holly Robinson is a close friend of Catwoman. During the events of Arkham City, Hugo Strange mentions that he has captured her as a means of controlling and manipulating Catwoman.[1]