Demons exist and their power is beyond what humans can fathom. In fact they are so strong that humans do not stand a chance against them in a fight.
The only thing strong enough to defeat a demon is another demon and it is trough this logic that Ryo Asuka hatches the plan to have his good-hearted friend Akira Fudo possessed by a demon. If a person is of pure of heart then he might be able to control the demon that posses him and thereby acquire power equal to a demon. After raising some hell in a club the plan works and Akira is possessed by the powerful demon known as Amon.
Now Akira is humanities sole champion of justice against the hidden demon menace that has plagued humanity since the dawn of time.
(Source: ANN)+ More
Characters & Voice Actors

Devilman
Main
Fudou, Akira
Main
Agwell
Supporting
Fudou, Kaori
Supporting
Gelmar
Supporting
Jinmen
Supporting
Kaim
Supporting
Makimura, Akiko
Supporting
Makimura, Miki
SupportingRecommended for you
Dance in the Vampire Bund
TV
24m
Digimon Tamers: Runaway Locomon
Movie
30m
Dirty Pair: Project Eden
Movie
81m
Gantz
TV
22m
Armitage III
OVA
34m
B'T X
TV
22m
Great Mazinger
TV
25m
Halo Legends
ONA
16m
Samurai Pizza Cats
TV
24m
Medabots
TV
24m
Appleseed Alpha
Movie
93m
Blue Gender
TV
23m
Gleipnir
TV
23m