A USAF pilot and trusted friend to Wonder Woman.
- Ace Pilot: As per usual Steve is an excellent fighter pilot.
- Badass Beard: Started to sport one in Throne of Atlantis and managed to keep it in Bloodlines.
- Promoted to Love Interest: When the universe started, it followed the New 52's example of Superman and Wonder Woman being a thing. However, with The Death of Superman, the universe established that Clark and Diana had an Offscreen Break Up with the switch to the more traditional pairing of Clark and Lois, and Wonder Woman: Bloodlines followed suit by seeing the traditional pairing of Diana and Steve at the end.
- Official Couple: With Diana as of the end of Wonder Woman: Bloodlines.
- What Happened to the Mouse?: He doesn't appear or get mentioned in Justice League Dark: Apokolips War.
- Appearances: Wonder Woman: BloodlinesVoiced by: Adrienne Moore
A work associate of Steve's, and friend to him and Diana.
- Adaptational Sexuality: Zig-zagged. The original 40's era Etta was unquestionably into men and had numerous boyfriends (although some versions are Ambiguously Bi), but her modern iteration is lesbian in the comics and this version pulls mostly from that modern version.
- Amazon Chaser: A rare woman-on-woman example. Steve implies Etta has a thing for buff women. Etta herself later confirms as such when she states she hopes to find Amazons who "like 'em thick." In the final scene of Wonder Woman: Bloodlines, Etta has A Lady on Each Arm.
- Race Lift: Etta is black like her Wonder Woman (Rebirth) iteration, rather than a pale redhead (or blonde) like the original '40's era Etta.
- Youthful Freckles
- What Happened to the Mouse?: Like Trevor, she doesn't appear or get mentioned in Justice League Dark: Apokolips War.
- Appearances: Justice League: Throne of Atlantis, The Death of Superman (non-speaking), Justice League Dark: Apokolips WarVoiced by: Sumalee Montano
The personal guard of Queen Atlanna.
- Adapted Out: Her backstory of being from the kingdom of Xebel is absent for this version.
- Adaptational Modesty: Her cleavage is covered in this version, as opposed to her comic version who sports Absolute Cleavage and Cleavage Window.
- Amazonian Beauty: This version of Mera has a distinctly feminine-yet-muscular build, likely owing from her role as royal bodyguard in this continuity.
- Ascended Extra: Mera plays a fairly important role in Justice League: Throne of Atlantis, but pretty much vanishes in subsequent films. In Justice League Dark: Apokolips War however, she is formally inducted into the League, assists them in the invasion of Apokolips and becomes one of Darkseid's Furies.
- Body Horror: Gets turned into a serpent-like cyborg in Apokolips War.
- Composite Character: This version of Mera takes more visual cues from Artemis than comics Mera, with her long red ponytail, band across her forehead and more Amazonian traits.
- Does Not Like Shoes: Like most of the Atlanteans, her heels and toes are exposed.
- Half the Man He Used to Be: As a cyborg, her lower body has been replaced with a serpent-like one, and half her face and head is metal.
- An Ice Person: In battle, she kills several soldiers using weapons made of ice, such as blades, whips, and arrows.
- Kung-Fu Wizard: Be it spells or Melee she will mow down enemies by the dozen.
- Making a Splash: She can freely summon a vortex of water when it suits her.
- More Deadly Than the Male: Much like Wonder Woman, Mera goes for the kill, while Arthur usually stops at knocking his opponent out.
- Most Common Superpower: Despite it being covered, Mera's chest is very prominent, just as Wonder Woman's.
- Official Couple: Begins a relationship with Arthur/Aquaman.
- Appearances: Batman: Bad BloodVoiced by: Geoff Pierson
Kate Kane's father.
- Action Dad: He was still in the Army when he had children.
- Alcoholic Parent: Implied. He was seen with a flask when he and Kate were having dinner and apparently his doctor informed to give it up.
- Bald of Awesome: He's bald, a former colonel, and a pretty Cool Old Guy.
- Dark and Troubled Past: His family was captured and ended with his wife and one of his daughters being murdered by them.
- Good Parents: He always supports and encourages Kate in either her choice to be "Batwoman" or finding a nice girl.
- Nice Guy: He's a very sweet man.
- Open-Minded Parent: He thinks nothing of Kate being a lesbian, even encouraging her to find a girlfriend.
- Outliving One's Offspring: While Kate is still alive, his other daughter was murdered as a child.
- Papa Wolf: Colonel Kane shot the men who were about to kill Kate.
- So Proud of You: Constantly states how proud he is of his daughter and that her mother and sister would feel the same way.
A detective from Gotham.
- Appearances: Teen Titans: The Judas Contract
A young man who was the trial candidate for Brother Blood's power transfer machine.
- Aborted Arc: With Apokolips War serving as the Grand Finale, his survival won't be followed-up on.
- Death by Cameo: He makes a brief appearance in Judas Contract, where he is shown being killed via a shot to the head. Subverted in that the bullet wound heals in The Stinger, and his eyes open and begin to glow green.
- What Happened to the Mouse?: Despite his survival being highlighted in a post-credits scene, he's never seen again before Flash resets the timeline in Apokolips War.
- You Have Outlived Your Usefulness: Mayhem shoots him in the head after the success of the power transfer. It doesn't take.
A male stripper being tracked by Task Force X on Waller's orders to retrieve a card he possess.
- Canon Foreigner: There never was anyone named Steel Maxum in the comics. Especially anyone that used to be Dr. Fate.
- Chippendales Dancers: His main profession, though he uses an Egyptian motif in his performance.
- Dating Catwoman: He seem to have a thing for Silver Banshee while he was Dr. Fate, and she seemingly returned the sentiment.
- Legacy Character: He once served as Dr. Fate, being chosen by Nabu himself. He lost the position after Scandal and Knockout stole the Card from him.
- Mr. Fanservice: Due to being a male stripper, most of his scenes have him shirtless all the time.
- Naked People Are Funny: Task Force X kicks him out of their bus after they have no use for him, leaving him naked on the road. He is later stopped and arrested by cops who poke fun at his nudity.
- Uncertain Doom: He is last seen being approached by Professor Zoom and his minions. Though its unknown what ultimately happened to Steel, its unlikely he came out of it alive knowing Zoom.
- Small Role, Big Impact: He has very few scenes to himself in Hell to Pay, but his backstory provides the main catalyst for the plot: Besides the fact he was a former Dr. Fate, he used to keep the MacGuffin in which every bad guy was after.
- Appearances: Justice League: Throne of Atlantis, The Death of Superman, Reign of the Supermen, Batman: Hush, Justice League Dark: Apokolips War
Clark Kent's co-worker at the Daily Planet.
- Action Girl: By the time of Justice League Dark: Apokolips War, she shows herself very capable at using weapons and hand-to-hand combat, taking down even Harley Quinn in semi-organized MMA fight. Apparently, she was one even before the movie since she was a Military Brat.
- Action Survivor: In the climax of Reign of the Supermen, she manages to come out of Superman and Hank Henshaw's fight in the Watchtower with just a few minor heat vision wounds. Furthermore, she turns off the Watchtower's solar shield, allowing Superman to regain his full power and defeat Henshaw.
- Boxing Battler: She gets to showcase such skills in a quasi-organized fight against Harley Quinn in JLD:AW, with the justification that she's "an Army brat."
- Damsel in Distress: Ends up being unwillingly used this way by Catwoman to snap Superman out of Poison Ivy's control.
- Military Brat: Said by Lois herself to Harley, she's "an Army brat".
- The Missus and the Ex: Becomes good friends with Diana by the time of Reign of the Supermen.
- Promoted to Love Interest: When the universe started, it followed the New 52's example of Superman and Wonder Woman being a thing. However, with The Death of Superman, the universe established that Clark and Diana had an Offscreen Break Up and it switched to the more traditional pairing of Clark and Lois.
- Official Couple: With Clark as of The Death of Superman.
- Taking You with Me: Lois and the last members of the Suicide Squad blow themselves and Lexcorp Tower up to stop the Paradooms from returning to Apokolips.
- Appearances: Justice League: Throne of Atlantis, The Death of Superman, Reign of the Supermen, Justice League Dark: Apokolips War (cameo)
An inventor who comes up with a special suit of armor to keep up Superman's legacy following his death.
- Drop the Hammer: Steel's main weapon is a massive steel sledgehammer. It can be thrown and return to Steel's hand and has a thruster built inside to increase the power of his blows.
- Early-Bird Cameo: He appears in Throne of Atlantis, aiding a fellow construction worker from Atlantian robots. Similarly to his comic counterpart, Superman saves him from death and he becomes inspired.
- Legacy Character: One of four people to take up the S-Shield following Superman's death.
- Powered Armor: Wears a solid gray armor sporting the S-Shield in the same color and a red cape. It's also much sturdier than the original featured in the comic story.
- Voiced By: Cameron Monaghan
A clone of Superman and Lex Luthor created by the latter after Superman's death to be a LexCorp-brand hero.
- Casting Gag: His voice actor Cameron Monaghan is best known for portraying the incredibly villainous Jerome Valeska, a predecessor to The Joker of all people, as well as Jerome's brother, Jeremiah, who for all intends and purposes, is Gotham's real Joker, while Superboy, while a little rough, is firmly a hero.
- Cloning Blues: Doesn't take learning the truth too keenly, but recovers after some kind words from Lois.
- Composite Character: While his design is very similar to Superboy's original appearance, he has a few mannerisms and appearance cues from Jonathan Samuel Kent, Superman and Lois' son in the main comics. He also briefly works for Luthor, similarly to the Matrix Supergirl.
- Conditioned to Accept Horror: He has next to no reaction beyond sarcasm to Lex's anger, even when it toes violence. He also has a rather muted response to hearing a scientist who helped create and raise him die horribly.
- Corporate-Sponsored Superhero: Superboy was created to be what Luthor always wanted: A Superman on a leash. There are even LexCorp logo patches on his jacket, rather than the S-shields from the comics. Superboy tears these off in the last third of Reign, to show Lex he's washed his hands of him.
- Death by Adaptation: While he did undergo Death Is Cheap in the comics, this version was Killed Off for Real in Apokolips War, thus he won't come back.
- Do Not Call Me "Paul": He temporarily has his comic counterpart's attitude of not wanting to be called "Superboy".
- Family Eye Resemblance: The only physical trait Superboy inherited from Luthor is his grey eyes. Everything else is Superman.
- Half-Human Hybrid: His genetic makeup is half Kryptonian and half human because Lex Luthor, in his egotism, sought to "improve" Superman's DNA by mixing in his own. It seems to be what made him more stable than the other Superman clones.
- Happily Adopted: At the end of Reign, Superboy is living in Smallville with the Kents under the name "Conner."
- Jerk with a Heart of Gold: He's got an ego and, like a typical teen, rebels for the sake of it, but Superboy understands what makes a hero and genuinely wants to be one.
- Kidanova: Though he's biologically a teenager, he's very popular among girls and very aware of it. He's not even above trying to hit on older women like Lois.
- Killed Off for Real: He's among Apokolips War's body count.
- Like Parent, Like Child: He has Superman's strong moral compass and lighthearted sense of humour, but also Lex's love of the limelight and knack for one-liners that get under people's skin.
- Muscles Are Meaningless: Endowed with super strength, but built like a stick.
- Neck Snap: How he dies at the hands of a Paradoom in Apokolips War.
- Really Was Born Yesterday: He was "born" a teenager, and is a few months old at the time of Reign.
- Socially Awkward Hero: Most of Superboy's showboating is compensation for his limited knowledge of how to interact with real people, besides what he's learned from 90's sitcoms.