Gen13 is a comic book originally written by Jim Lee and Brandon Choi and illustrated by J. Scott Campbell. The comic features a team of super-powered beings composed of five teens and their mentor.

The series takes place in Lee's Wildstorm universe, and Gen13's stories and history intertwine with those from his own works, such as Wildcats.

Notable characters in Gen13 include:

• Caitlin Fairchild: Once an ordinary girl, Caitlin's muscles spontaneously increased in density, granting her superhuman strength and agility. The manifestation of her "Gen-active" status caused her body mass to increase, shredding her clothing at the time.
• Bobby "Burnout" Lane: Son of John Lynch (Gen13's mentor), Bobby manifested the ability to generate and manipulate high-energy coherent plasma, which ignites on exposure to oxygen.
• Roxanne "Freefall" Spaulding: "Roxy" is the youngest Gen-active teen, with the ability to nullify the effect of gravity on herself. Has a crush on Grunge and is jealous of Fairchild's physique. Keeps Queelocke as a "pet."
• Sarah Rainmaker: Rainmaker can influence local weather systems, manipulating air currents to grant herself flight and direct water with a gesture. Amplifier bands on her wrists allow her to project lightning.
• Percival Edmund "Grunge" Chang: Able to mimic the molecular structure of any material he touches (and partially bestow this effect on others), Grunge is a surf rat who enjoys sleeping in. He possesses brown belts in five martial arts styles.

The teens were originally invited to take part in a government project, but when they learned that the project was actually a prison-like testing ground on "Gen-active" teens, they made their escape, but not before they "manifested" superhuman powers, and they were labelled dangerous fugitives. Their only hope was to rely on each other to fight their foes and unveil the personal secrets that linked them to Team 7 and International Operations.