Name: Martin Stein
Universe: Earth-1
Alter Ego: Firestorm
Occupation: Physics Professor at Vandemeer University, former designer of Hudson Nuclear Facility
Marital Status: Divorced
Group Affiliation: Justice League of America
Base of Operations: Pittsburgh, Pennsylvania, formerly New York City
Known Relatives: Clarissa Clemens (wife, divorced)
Height: 5 ft. 10 in.
Weight: 161 lbs.
Hair Color: Gray
Eye Color: Brown
First Appearance: Firestorm #1