After an old patient from Arkham Asylum left Harley Quinn an apartment building in Coney Island in his will, she packed up her entire life to make the big move to New York. When her motorbike and sack full of junk are stopped at a red light, she is disturbed to watch a man dragging Nathan across the street. Angrily, she fishes for a bullwhip from her sack, and snaps through the Nathan's leash before wrapping it around the dog-walker's neck. Gleefully, she adopts the dog on the spot, towing its former owner by the neck as she speeds through the now green light.
- Enhanced Senses: Like all dogs, Nathan possesses senses that far surpass a human's.
- 10 Appearances of Nathan the Dachshund (Prime Earth)
- 12 Images featuring Nathan the Dachshund (Prime Earth)
- Quotations by or about Nathan the Dachshund (Prime Earth)
- Character Gallery: Nathan the Dachshund (Prime Earth)