Cooper Daniels

Cooper Daniels is one of Ben's allies. He was introduced for the first in Ben 10 vs. the Negative 10 (Part 1), and later became a recurring character in Ben 10: Alien Force.

Cooper is the grandson of one of Grandpa Max's Plumber friends, Cooper possesses powerful technopathic powers, making him able to control and understand any machine by interacting with it.

Abilities
Cooper is a technopath which means he can move electonic devices with his mind. He also can build things from little blueprints in his head; thats why he closes his eyes. He can telekenitically disassemble and reassemble any technology and telepathically communicate with machines to get information.

Original series
Cooper first appeared in the two part episode Ben 10 Vs the Negative 10 a Plumber friend of Max's and Cooper's grandfather asked him pick Cooper up from summer camp. He later proved critical to stopping the Negative 10 saving Ben at Fort Knox, upgrading the Rust Bucket, and reactivating the Mt. Rushmore base defenses he was put under Sublimino's control and thus remained unconscious for the rest of the episode.

Alien Force
In the episode Undercover, Cooper returned having met Kevin on a prior occasion. Kevin suggested recruiting him to repair a teleportation device. When they arrived at his lab they found it ransacked and Cooper missing. Cooper left a message showing him being captured by DNAliens. When they arrived at Los Soledad they Discovered that Cooper's technopathic abilities were used to make a powerful energy source. With Cooper's help the Cloaking device is destroyed and a trucker spots the chaos who alerts the police. Later Cooper is recruited in a last stand attack on Los Soledad he uses his abillities to Free Darkstar, and create a weaponized robotic suit to fight the DNAliens and later lasers that turn DNAliens back to normal. After the chaos is over Cooper Joins Manny Armstrong, Pierce Alan Albright, and Helen Wheels as pupils under Max Tennyson. During the two part episode Vengeance of Vilgax Cooper tried to stop Vilgax with his suit and failed miserably. In the Alien Force series, he is also much fatter and more out of shape than in the Ben 10 series.

Vilgax attacks
In Vilgax attacks Cooper was tricked into helping Albedo make a energy core for Vilgax by extracting the energy from the supply of Taedinite on Moro'tesi. He directed the team to the energy core and helped Kevin and Gwen find Ben after he defeated Albedo.

Triva

 * In the original series Cooper was average weight but has gained a lot of weight in the Alien Force series, and appears to not have grown at all during the five year time skip between the Negative 10 special and his Alien Force reappearance.