When it was revealed in the Season 2 winter finale of ABC's Agents Of S.H.I.E.L.D. that Skye is an Inhuman named Daisy Johnson, everyone was thrilled... because both major fan theories turned out to be correct: Skye did come from the Kree-created race of superhumans AND she was Daisy, aka Quake, the daughter of mad scientist Calvin Zabo. Quake isn't an Inhuman in the comics, but the show blurred these two stories together — and now viewers can't help but wonder what other Inhumans could be showing up on Agents Of S.H.I.E.L.D.
We already know there are at least two other characters that share an alien origin with Skye (other than her mother, of course). First there's Raina, who was similarly transformed when the Diviner was activated in the Kree temple during the finale. There has been much speculation about her identity post-transformation, although the prevailing theory is that Raina has turned into Tigra. Then there's the man with no eyes who appeared in the final season of the episode, in possession of his own Diviner, who many comic-savvy viewers theorize is The Reader, an Inhuman who's job is to find other Inhumans.
While Marvel Studios is undoubtedly saving some of the biggest names from the comic series for the Inhumans feature film coming in July of 2019 — like Black Bolt, their leader, or Maximus the Mad, his villainous brother — there's a good chance we may see some second-tier Inhumans pop up on Agents Of S.H.I.E.L.D. to help introduce viewers to their complicated mythology.
Luna
The daughter of powerful Inhuman Crystal and mutant Quicksilver, the mutated genetic codes of her parents were thought to have cancelled each other out, resulting in a normal human child. But when Luna was only six, her father exposed her to the Terrigen Mists, and she transformed into a skilled empath, able to see and affect people's emotions at will. Not only could The Reader potentially use Luna's ability to track down other Inhumans, but her appearance on S.H.I.E.L.D. could be interesting because of the things she has in common with Skye: both born of parents with different abilities; both transformed into their true selves by their fathers; and both struggling to cope with their newfound powers.
Triton
With DC having recently unveiled their own aquatic-themed superhero, it makes sense that Marvel would strike back by introducing Triton, the fish-like son of an Inhuman priest and an Inhuman philosopher. He often worked as a scout, keeping track of human activity in the vicinity of the Inhuman city of Attilan. Granted, the fact that he can't survive out of water for more than five minutes at a time would be cumbersome to the team, but he could bring a quirky presence to the show not at all unlike Abe Sapien from Guillermo Del Toro's Hellboy movies.
Gorgon
This Inhuman with the legs of the bull is a loyal ally to his cousin Black Bolt, serving as the captain of his Royal Guard. Part of his job description is to help teach young Inhumans who have recently been exposed to the Terrigen Mists how to handle their newfound powers. Perhaps Gorgon will show up on Earth to help train and shepherd the newly-mutated Skye. The two characters would certainly have a lot to bond over: like Quake, Gorgon also has the ability to create seismic shockwaves (which he does by stomping his cloven hooves).
Maelstrom
Of course, not all Inhumans are good, so perhaps the next Inhuman the show introduces won't be there to help Skye... but to hurt her. Maelstrom is virtually unstoppable, as he has the ability to absorb any attack and rebound that kinetic energy on his attacker. That would make him a formidable foe for Coulson's team. But I'm mostly interested in the way the S.H.I.E.L.D. writers could play with his origins. In the comics, Malestrom is the son of an evil Inhuman scientist named Phaeder, who is banished from Attilan for conducted illegal experiments.
Given how the show likes to mess with origin stories, it's conceivable that the small screen version of Maelstrom could be related to someone we know. What other character on the show has a mad scientist for a father? That's right... Skye herself. What if Cal had another child that Skye never knew about — one who grew up, not in an orphanage like her, but under the twisted tutelage of his insane father?
Images: Kelsey McNeal/ABC; Marvel Comics (3)