Real Name: Dr. Karl Hellfern
Occupation: Criminal
Marital Status: Single
Base of Operations: Gotham City
Height: N/A
Weight: N/A
Eyes: N/A
Hair: N/A
First Appearance: Detective Comics #29 (July 1939)
Created By: Bill Finger, Gardner Fox

Doctor Death developed lethal chemical gases and used them to extort money out of Gotham City's wealthiest citizens. He was assisted by his hulking East Indian manservant, Jabah. Though he did not possess a costume, Doctor Death wore a white lab coat, a monocle, and a distinctive vandyck beard.

He has since become one of many mad scientists who have gone missing.