Danny Phantom

Danny Phantom (real name Daniel "Danny" Fenton) is the main protagonist of the Nickelodeon series of the same name. He is the son and middle child of ghost hunters Jack and Maddie Fenton, the younger brother of Jazz Fenton, the older brother and genetic template of the Ghost superheroine Dani Phantom, the boyfriend of Sam Manson, the best friend of Tucker Foley, the nephew of Alicia and the ex-boyfriend and former rival-turned-friend of Valerie Gray. He was a human boy who turned into a ghost/human hybrid upon stepping in through the Fenton Portal while in his parents' laboratory. His molecular structure is fused and rearranged with ectoplasm. As a result, he can transform from human to ghost at will, and he has several supernatural abilities. He works with his sister Jazz and best friends Sam Manson and Tucker Foley, in stopping villainous ghosts, with the likes of Vlad Plasmius, Skulker and other ghosts and being hunted down by his own parents (who do not know that Danny Phantom and Danny Fenton are one and the same until the end of the series).

Throughout the series, Danny makes both friends and enemies through humans and ghosts alike, even finding a mentor in both Frostbite and Clockwork.