Real Name: N/A
Occupation: Criminal
Marital Status: Single
Base of Operations: Gotham City
Height: N/A
Weight: N/A
Eyes: N/A
Hair: N/A
First Appearance: Arkham Asylum: Living Hell #1 (July 2003)
Created By: Dan Slot

Junkyard Dog is a man completely obsessed with scavenging prizes and treasures from garbage. He apparently has the ability to create all manner of functional things -especially weapons- from junk. He was killed by fellow Arkham inmate Doodlebug.