Krypton opens an entire segment of the DC Universe that’s only been scratched by the other live-action shows (primarily through Supergirl). The Last Daughter of Krypton lives on Earth 38 where alien intervention is so common they have an entire organization, D.E.O., dedicated to Earth’s defense (most of our other heroes live on the alien-free Earth-One). Thanks to the season-ending cliffhanger of Krypton (which doesn’t take place in the Arrowverse) we can now look to the stars and beyond. In case you stopped watching after the first couple of episodes, here’s what you missed: General Zod, who traveled back in time under the ploy of stopping Brainiac from bottling Kandor (who the viewers had been led to believe had traveled back in time), is successful in his mission. He manages to alter the timeline so Kryptonians can conquer the stars thereby creating the possibility of more space-faring species and characters. It also, apparently, means a future without Superman.
One tiny catch, Krypton takes place 200 years before baby Superman was sent to Earth, so it does limit who could show up based on lifespan. Although Adam Strange could start playing with time travel to bring heroes back who could help restore the timeline and defeat Zod.
Assuming we’re solely dependent on what exists at the time of Krypton here are some of the alien species or characters who could make an appearance in future seasons of Krypton.
When I started making this list back in May I had the Czarnians all the way at the bottom. I wasn’t sure how long ago it was in the DC Universe that Lobo slaughtered everyone on his home planet of Czarnia, but my assumption was the genocidal bounty hunter wouldn’t have existed 200 years ago. However, that didn’t mean we couldn’t run into another Czarnian possibly hinting at the coming birth of the demonic child. Turns out, the Main Man is much older than I thought! During San Diego Comic-Con the showrunners confirmed Lobo will be making his way to Krypton. How? We still don’t know, but it would make sense for Lobo, considering his significant crimes, to run into Seg in the Phantom Zone.
There better be space dolphins.
Green Lantern Corps
Tomar-Re’s greatest failure was the explosion of Krypton. As the Green Lantern of Space Sector 2813, he was sent by the Guardians of the Universe to stop the planet from exploding. On his way, he was blinded by a solar flare which left him blind and unable to make it to the planet in time. The first thing he saw when his vision returned was an exploding Krypton. I don’t know the lifespan of Xudarians or who wore the ring 200 years before Tomar-Re failed. However, the Xudarians have a long history of passing down the ring within their species so it’s Earth-One we could see a fin-headed predecessor to Tomar.
That said, if the Guardians eventually detect Zod messed with time it could create cause for a full mobilization of the Corps.
The first villain to face the Justice League of America, a giant space starfish who controls humanoids by attaching little Starros to their faces, might be too cartoonish for Krypton. The self-proclaimed Star Conqueror would likely be a better fit for Supergirl, but if season two is giving us Lobo… all bets are off.
We know Ava DuVernay is set to direct a New Gods film for the DCEU. That means an appearance by Darkseid on TV is unlikely but not impossible. There’s significant material to mine in Jack Kirby’s Fourth World. The most likely New God candidates would be Orion or Metron. Other than Miracle Man and Big Barda, Orion and Metron spend the most time away from New Genesis and Apokolips. In the case of Orion, the show could borrow the storyline from Walt Simonson’s series and have Orion steal Darkseid’s coveted anti-life equation and bring it to Krypton instead of Earth.
If Zod wants a war with the stars he’s going to face some stiff competition. Mongul has long been hell-bent on conquering the Universe and he could easily be an obstacle for the Kryptonians. It could also be an opportunity to wake up Warworld and have Zod take part in a gladiator battle.
Despero is another galaxy conquering villain who’d put up quite the challenge to Zod’s attempt for dominance. A regular foil of the Justice League, Despero has a third eye which gives him hypnotic, mind-reading powers. He eventually acquires the Flame of Py’Tar which enhances his powers and strengths but seeing as Krypton is two centuries before the JLA this could be the lower-powered version of the despot.
We saw Adam Strange on Rann this season, so why not Thanagar? In the comics, the two planets have a long history with each other including two interplanetary wars. Could we see the Nth Metal clad Thanagarian warriors enlisted to take down Zod and restore the timeline?
L.E.G.I.O.N. or R.E.B.E.L.S.
If we’re getting Lobo, we could also see the founding of the interplanetary space force known as L.E.G.I.O.N. The organization was started by Vril Dox II, a.k.a. Brainiac 2, who is (in the current comic continuity) a clone of Brainiac. Does something happen in the Phantom Zone to make Brainiac split and “give birth” to a different version of himself? Does this version come back to Krypton with Seg and create an alliance with Strange forming L.E.G.I.O.N.? In the comics, Lobo is one of the first to team up with Dox as part of the second iteration of L.E.G.I.O.N. When Dox loses control of L.E.G.I.O.N. to Starro he forms R.E.B.E.L.S. After running into Strange and defeating Starro the newest iteration of L.E.G.I.O.N. is established on Rann with Strange as a member.