One of the Demon Lord Zenons most trusted warriors, assigned to go into the human world and prepare a base from which the Demon Tribe would start their invasion. He instead fell in love with Miki Makimura and resolved to defend humanity.
- Badass Biker: Taking into account that the Lighter and Softer adaptation couldn't have Akira dismembering and mauling demons in a gruesome manner to cement his badass status, they just gave him a nice bike to ride in between the fights.
- Came Back Wrong: He dies, only for his body to be possessed by Devilman, and he becomes cockier and more of a bully.
- Death by Adaptation: He is killed along with his father, and his body is taken over by Devilman.
- Defector from Decadence: He used to work for Zenon, but turned against him to protect humanity and Miki.
- Jerk with a Heart of Gold: He is basically the local school bully, but he genuinely loves his adoptive family and Miki.
- No Name Given: He is simply called Devilman.
- The Power of Love: His love for Miki brings out the best in him.
- Shapeshifting Excludes Clothing: Aside from his Magic Pants.
- Spared by the Adaptation: He survives with Miki, fully embracing his identity as Akira.
- Whip It Good: He uses his belt as a makeshift whip.
- Would Hit a Girl: Aside from Harmless Villain Lala, he fights the female demons just as brutally as the males.
Akiras Love Interest.
- All Girls Want Bad Boys: Averted; she hated it when he acts mean to the other students, and will retaliate by hitting him.
- Damsel in Distress: Sometimes becomes this, as the demons love to target her to get at Devilman.
- Love Interest: To Akira.
- Love Redeems: Devilmans love for her is what convinced him to betray Zenon.
- Morality Pet: She's the reason Amon turned back against his own kind after being sent to destroy humanity.
- Spared by the Adaptation: She survives along with Akira.
- Tsundere: She often yells at Akira and hits him whenever hes being The Bully, but she cares for him nonetheless.
Mikis little brother.
Tares girlfriend, she often gets swept up in the demon chaos alongside Tare.
A demoness who is sent after Devilman, but decides to stick around and become an ally.
- Brainless Beauty: She transformed herself into a cute but very stupid girl. And she is really aware of this.
- Butt-Monkey: One of the few demons that no one, not even Zenon or Devilman himself, take seriously.
- Canon Foreigner: She appears only in the '70 series.
- Gonk: Her real face looks like a car that has drove into a brick wall. She does attempt to fix her face when she has the chance.
- Harmless Villain: She lacks intimidating abilities and is too stupid to be considered a threat to anyone.
- Ms. Fanservice: There is quite a bit of focus on her legs and other nice areas.
- Really 700 Years Old: She is regarded as cute in appearance but is actually quite old.
- Sacrificial Lamb: Killed by Magler, which sets up the serious, apocalyptic tone of the final episodes.
- Too Dumb to Live: After Akira sarcastically tells her to kill herself because only death can cure a fool she decides to commit suicide. She soon proves to be too dumb to die later because Akira soon finds her trying to slit her throat with a paper knife (she was worried about hurting herself with a real knife).
- Villainous Crush: She is in love with Devilman and believes that his attempts to avoid her are because he is too shy reveal his (nonexistent) romantic feelings for her.
Demon Tribe leaders
Demon Lord Zenon
The supreme leader of the Demon Tribe.
- Bad Boss: He's willing to kill anyone who fails him, or wants to live a peaceful life, as witnessed when he has a demon, Lita, stabbed as an example for wanting a peaceful life.
- Big Bad: Since Satan/Ryo does not appear, Zenon is the one who sends out the demons that Devilman fights.
- Karma Houdini: He is still left standing by the end, with the implication that Devilman will eventually face him.
- Non-Action Big Bad: He never fight Devilman himself, instead preferring to send minions to do the fighting for him.
- Make an Example of Them: Kills Lita because she did not want to kill humans, and he wants to warn the others what will happen to those who do not follow his orders.
- The Unfought: God serves as the Final Boss, while Zenon never fights Devilman.
Demon General Zannin
A demon working undercover to assist Zannin and Zenon.
Demon General Muzan
- Arc Villain: The Second of thee generals who sends out his minions to defeat Devilman.
Demon Marshal Lacock
- Arc Villain: The third demon general that Zenon assigns the task of eliminating Devilman.
- Canon Immigrant: She is added to the cast in Devilman Saga.
- Even Evil Has Loved Ones: She cares more about her subordinates than the other demon generals did, when her lover Arlon dies in battle against Devilman she decides to kill him herself.
- Soul Jar: Her belt, as long as it remains in tact she can recover from any injury.
- Token Yuri Girls: With Arlon.
Demons of the Demon Tribe
- Composite Character: His rampage in the Makimura household is similar to Aqwel and Ghelmers attack in the manga, theres even a point where he takes the form of bath water and carries Miki upstairs.
- Meaningful Name: His name is the Japanese word for change or shapeshifter.
- Mythology Gag: At one point he takes a form resembling Linghorn from Mao Dante.
- Shapeshifter Default Form: A giant yellow snake with heads branching off like a tree.
- Starter Villain: Hes the first demon that Devilman fights against to protect humanity.
- Adaptational Dye Job: She is practically blue, unlike her other all-white appearances.
- Adaptational Modesty: She is given a shoulder-top dress to avoid showing nudity.
- Bond Villain Stupidity: She takes her sweet time trying to kill Miki, rather than just kill her then and there. Doing so gave Devilman the opportunity to save Miki just in time, and results in her death.
- Death by Adaptation: She dies rather anticlimactically due to Bond Villain Stupidity rather than fusing with a demon or Kaim.
- Starter Villain: The first Monster of the Week fought by Devilman.
A demon sent by Zenon to eliminate Devilman, he bears a resemblance to Ghelmer from the manga.
- Hollywood Acid: Shoots it from his tail.
- Irony: In the manga Ghelmer was a demon whos powers involved water, Geruge is a demon that Devilman kills by throwing into the sea.
- Paranoia Gambit: He tells Devilman that hes going to kill Miki before sundown, Akira spends the entire day being overprotective of Miki until she gets fed up with him and slaps him in the face hard enough to make him bleed and now Devilman has a weak point Geruge can aim for.
A demon employed by Zannin to help him spread chaos in the human world.
- Death by Adaptation: In the manga series written by Mitsuru Hiruta to tie into the anime hes killed in battle against Devilman rather than being killed by Zannin for retreating.
- Dirty Coward: Retreats as soon as he loses the advantage against Devilman, twice.
- Puppeteer Parasite: He used a number of demon spiders, capable of possessing people, to carry out his mission.
- Monstrous Cannibalism: She eats Lita in order to take her form.
- Not-So-Harmless Villain: He proves to be just as dangerous as the rest of the Demon Tribe when he rips a volleyball player in half while playing with his doll.
- People Puppets: He can control anyone so long as he has a doll sculpted in their image.
- Psychopathic Manchild: Hes very lazy and would much rather spend time playing with his dolls, never mind that they can influence the people their modeled after and if the doll is broken that person dies in the same manner.
- Big Brother Instinct: Is very insistent that Iyamon calls for him if shes in trouble.
The Gan Triplets
Gandee, Gander and Gandagan were a trio of demons who went to the human world to eliminate Devilman.
An armless centaurian demon who can travel through mirrors and take control of other peoples arms.
- Mirror Monster: She usually shows herself to her victims by appearing in a mirror they are looking into.
- Psychic-Assisted Suicide: Her preferred method of killing, if you look at her she can gain control of your arms and make you strangle yourself to death.
- Pocket Dimension: She can travel to the mirror world at will and when she uses the key that Muzan gave her she can bring others into it.
A powerful and gluttonous slime demon tasked by Muzan to kill Devilman.
- Death Faked for You: He kidnaps Miki and then casts illusions to make people think that Akira killed her after she rebuffed his advances.
- Everything Is Squishier With Cephalopods: Hes basically an anthropomorphic octopus.
- Spear Counterpart: possibly one to and of the female demon Texsch from the manga.
A purple feline demon who specializes in granting the wishes of humans in exchange for their souls.
- Our Souls Are Different: They are purple and shaped like the person they belong to, once Jacon devours them the victim is left in a comatose or vegetative state.
- Sold His Soul for a Donut: His victims had some rather small desires; Hairo wanted to go ice skating with his friends when he was stuck home studying, Alphonse wanted to drive fast while he was stuck in a traffic jam, the only one who had an understandable goal was Chaco who wanted to kill Alphonse after his reckless driving caused a car accident that injured Hairo.
- Your Soul Is Mine: Once he fills his end of the bargain he devours his victims soul.
A wraith like demon whos shadow can awaken darkness within human hearts causing them to act without restraint.
- Affably Evil: Hes very apologetic to Alphonse when hes about to kill him.
Mr. and Mrs. Makimura
Akira and Mikis home room teacher.
A classmate and friend of Akira and Mikis and the chairman of the schools student council.
- Beta Couple: He and Chaco are this to Akira and Miki.
- Education Mama: His mother puts a lot of pressure on him to get good grades, justified because she's stated that she doesnt want him to turn out like his dead beat father.
- Go Through Me: Throws himself between Muzans minions and Chaco so that she can escape. He accepted that he would probably die, but he still went through with it hoping that it would mean Chacos survival, and asked his parents forgiveness for dying before them.