Jack Flag

Jack Flag
Cover art to Thunderbolts #111, by Marko Djurdjevic.
Publication information
Publisher	Marvel Comics
First appearance	Captain America #434 (December 1994)
Created by	Mark Gruenwald (writer) Dave Hoover (artist)
In-story information
Alter ego	Jack Harrison
Team affiliations	Guardians of the Galaxy
Partnerships	Captain America
Notable aliases	King Cobra, AZ-1260
Abilities	Superb athlete Skilled martial artist Superhuman strength, stamina and durability

Jack Flag (Jack Harrison) is a fictional character appearing in American comic books published by Marvel Comics. A minor patriotic hero, he has occasionally appeared alongside Captain America and has been a member of the Guardians of the Galaxy.

He first appeared in Captain America (1st series) #434 (December 1994), and was created by Mark Gruenwald and Dave Hoover.

Jack and his brother, Drake, were members of Captain America's computer hotline network. Together, they created a citizen's patrol group in their hometown Sandhaven, Arizona. Several criminals attacked Drake; the attack left him unable to use his legs. After the attack, Jack and Drake discovered that the Serpent Society had infiltrated their hometown and they had attempted to contact the local authorities. They found that law enforcement had been bribed by the Serpent Society. Jack, unhappy with this information, began training in martial arts and weight lifting so that he could fight the Serpent Society on his own. He took on a disguise becoming Jack Flag, an identity which he thought would make Captain America proud.

During a bank robbery, Jack intervened and stepped on Rock Python and Fer-de-Lance (both of whom were members of the Serpent Society). Shortly after this, Jack attempted to infiltrate the Society, but King Cobra did not fully trust Flag. King Cobra sent Jack to steal a painting from Mr. Hyde, who severely beat Jack. While fighting, Hyde's chemicals drenched Jack and he developed superhuman physical abilities. After receiving his new powers, Flag easily defeated Mr. Hyde and retrieved the painting. Before returning the painting to King Cobra, Flag contacted Captain America's hotline and informed them that the Serpent Society was in Sandhaven. Impressed that he was able to defeat Mr. Hyde, Cobra tried out Jack as a new King Cobra. While Flag was undercover with the Serpent Society, Captain America, and his protégé, Free Spirit, showed up to aid Jack and defeat the Society. Jack followed Captain America and Free Spirit east, aiding them against ULTIMATUM, AIM, and Madcap. When Captain America believed he was dying, he charged Jack Flag, Free Spirit, Fabian Stankowicz and Zach Moonhunter with maintaining his hotline.