Nathaniel Adam aka Captain Atom is one of the supporting protagonists in Batman: The Brave and the Bold.
He is voiced by Brian Bloom.
Former United States Air Force Captain Nathaniel Christopher Adam, aka Allen Adam, aka Cameron Scott, was atomized in a scientific experiment gone awry. He acquired super strength, flight, and energy blast projection. With these powers, Adam became Captain Atom. The hero garnered enemies like Major Force but he also took part in public service announcements with two child actors named Chris and Kyle. Captain Atom's motto was "Be a hero by remembering you're not."
Captain Atom, for all his might, was plagued by arrogance, cocky, and self-serving attitude. He didn't understand why everyone thought Batman was the best superhero and felt he shouldn't be in the Justice League. Just as he joined the Justice League International, Captain Atom was about to be presented a needed lesson in humility. A battle with Major Force left him without his powers. Captain pleaded with Batman to help him adjust to his limitations but he couldn't beat a common thief in a simulation. With Major Force on the rampage the League opposed him and Captain was assigned to monitor duty. When things looked bleak, Captain drove a jet to Earth and crashed into Major Force. The blast overloaded the stolen Quantum Vacuum Force wore. As it detonated, Captain Atom jumped atop it to shield everyone. Luckily, the explosion restored Captain's powers. However, he didn't really learn his lesson.