History of character has not yet been written.
- Animal Empathy: Patrick had a link with his rats
- This character displays many similarities with the Ratcatcher, a character created by Alan Grant, John Wagner, and Norm Breyfogle, first appearing in Detective Comics #585. The cover of Batman Beyond (Volume 2) #17 even references the cover of Ratcatcher's debut issue, Detective Comics #585.
- Ratboy was voiced by Taran Noah Smith.
- 3 Appearances of Patrick Fitz (DCAU)
- 1 Images featuring Patrick Fitz (DCAU)
- Quotations by or about Patrick Fitz (DCAU)
- Character Gallery: Patrick Fitz (DCAU)
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