Real Name: N/A
Occupation: Criminal
Marital Status: Single
Base of Operations: Gotham
Height: N/A
Weight: N/A
Eyes: N/A
Hair: N/A
First Appearance: Batman #53 (June-July 1949)
Created By: Bill Finger A mysterious, wheelchair-ridden criminal and gem-smuggler. He could possibly be a renegade merman scientist from undersea civilization who exchanged fish tail & gills for legs & lungs by "converting chamber" of his own invention, though mere supposition.