Jack Flag
Real Name: Jack Harrison
Occupation: Adventurer
Birthplace: USA
Identity: Secret
Base of Operations: Knowhere; Formerly Prison 42, Negative Zone; Sandhaven, Arizona
Origin: Mutate
First Appearance:
Captain America (1968) #434
Gender: Male
Height: 6'1
Weight: 210 lbs.
Eyes: Blue
Hair: Brown
Education: High school graduate
Universe:
Earth-616
Total Appearances: 35
