Jennifer is a stunt pilot in her civilian identity. A blood transfusion from her cousin, Bruce Banner, caused her to turn into the statuesque gamma-powered amazon she is today. Bruce, horrified by what he had caused, tried to keep Jen out of the superhero business, but eventually had to admit she could handle herself.
Powers and Abilities
Seemingly those of Jennifer Walters (Earth-616)#Powers
Power Cosmic: Her powers were later enhanced exponentially by an infusion of cosmic energies by the world-devourer Galactus. She gained superhuman strength, stamina, durability, agility, and reflexes beyond that of her previous abilities. She had the ability to manipulate cosmic energy in the form of blue energy and use that energy to control and lift objects. She also had the ability to fly at beyond-light speeds through interstellar space and traverse hyper-space to travel to other worlds and also possessed near-total physical invulnerability. She Hulk's head also became plumed with cosmic energy resembling green flames as a result of her gamma radiation combining with the Power Cosmic.
Seemingly those of Jennifer Walters (Earth-616)#Abilities
Gamma Gauntlets: Gauntlets that can emit waves of energy. Like many of the weapons at Gamma Base, they were seemingly designed to combat the Hulk. In what seems to be a continuity error, Jen is seen using similar abilities without the aid of the gloves. 
Cosmic Staff: A staff Jen wielded as the herald of Galactus. It could emit Cosmic energy from its tip and presumably be used to summon Galactus when a suitable world was located.
Team S.M.A.S.H. jump jet: The S.M.A.S.H. jump jets come with the ability to separate into five small, one man fighters before reconnecting, not unlike the Fantasti-Car. More often than not, however, it ends up destroyed, Jen often musing on how many they've lost.
Cosmic Surfboard: A green board comprised of energy that She-Hulk (As the Emerald Emissary) could travel on. Unlike the Silver Surfer's board, it did not seem to be a solid object, instead being manifested through Jen's use of the Power Cosmic.
- Voiced by Eliza Dushku
- 53 appearance(s) of Jennifer Walters (Earth-12041)
- 30 image(s) of Jennifer Walters (Earth-12041)
- 1 quotation(s) by or about Jennifer Walters (Earth-12041)