10 Best Percy Jackson Book Characters That Aren't In The Disney+ Show Yet

Percy Jackson and the Olympians saw a fantastic first season with great main characters, but the story still has many more amazing people to introduce. In addition to there being four more books with new characters in Rick Riordan’s flagship Percy Jackson and the Olympians series, the bestselling author wrote some spinoffs set in the same world. This includes The Heroes of Olympus and The Trials of Apollo, both also focusing on Greek and Roman mythology, as well as the Norse mythology-inspired Magnus Chase and the Gods of Asgard books and the Egyptian series The Kane Chronicles.

Percy’s half-brother Tyson has been cast, while it also seems like a given that Zeus’ daughter Thalia Grace will appear in Percy Jackson season 2. Yet there are many more characters from The Sea of Monsters who could turn up in the sophomore season, as well as figures from subsequent Percy Jackson books and the spinoffs whose inclusion would deepen the world. It remains to be seen if the Disney+ adaptation of the Riordanverse will encompass The Heroes of Olympus and the likes of it, which would constitute a massive TV universe with many complex characters.

10 Nico di Angelo

First Appearance: The Titan’s Curse

Nico is every Riordanverse fan’s favorite goth kid who has a complex and dark character arc throughout Percy Jackson and the sequel series, demonstrating a lot of realistic, saddening events. Nico and his sister Bianca are discovered by Percy and co. in the third book, who identify them as demigods of unknown parentage. Nico blames Percy for Bianca’s death during a quest and flees Camp Half-Blood, after which Percy realizes that Nico is the son of Hades.

With this revelation, Nico completes the trifecta of the descendants of the “Big Three” gods and further complicates the matter of the prophecy about one of their children destroying or saving Olympus. Nico’s arc includes coming into his power, forgiving Percy and the other demigods who only want to protect him, and overcoming internalized homophobia. Nico is a very lonely person with a lot of emotional depth and a profound storyline about self-acceptance the showrunners should be looking forward to adapting.

9 Rachel Elizabeth Dare

First Appearance: The Titan’s Curse

Meeting Rachel is one of the strangest encounters of Percy’s life, and that says a lot. Percy runs into Rachel while stopping at Hoover Dam on a quest. Rachel has the rare ability among mortals to see through the Mist, therefore perceiving Percy fighting off a hoard of animated skeletons. Percy runs off before Rachel can get an explanation from him, but this meeting is an insane coincidence because it turns out that Rachel is also from New York and is attending the same school as Percy next year.

Percy goes to Rachel for help at strange times when her sight allows her to navigate the Labyrinth and see glimpses of the future. Rachel becomes Camp Half-Blood’s new Oracle and delivers the next Great Prophecy at the very end of the Percy Jackson series. Aside from her unique powers, Rachel is a great character because she has the wit and sarcasm to match Percy, and claims some iconic moments like attacking Kronos with a blue plastic hairbrush.

8 Leo Valdez

First Appearance: The Lost Hero

While characters like Nico and Rachel’s introduction will happen easily because they are in the main Percy Jackson timeline, Leo might have to wait years or the show will need to completely rewrite his timeline. The Heroes of Olympus goes out of its way to focus on the children of the gods who got less attention in Percy Jackson, including Hephaestus’ son Leo, one of the new trio introduced in The Lost Hero. Leo is energetic and funny; like many of Hephaestus’s children, he also has a knack for building things.

However, what makes Leo an interesting character is the profound intelligence and seriousness that underlies his quirky and lighthearted persona. Leo pieces together that he is the doomed hero the new prophecy refers to and has a romantic subplot with Calypso, a maiden from Greek mythology with a long history of heartbreak. Leo can turn around any hopeless situation, allowing him to still have a presence in the later books.

7 Ethan Nakamura

First Appearance: The Battle Of The Labyrinth

A certain Percy Jackson character may soon upstage Aemond Targaryen where the eye patch aesthetic is concerned. Ethan shows up later in the Percy Jackson books but could easily be introduced earlier in the show as one of Luke’s rogue demigods. Ethan is a strong character choice for the show to focus on because he gives weight to Luke’s argument against the Olympians, arguably even more so than Luke’s backstory. Ethan is the son of Nemesis, the Greek goddess of balance and revenge.

Ethan’s mother never claimed him because only the main Olympians have cabins at Camp Half-Blood, part of the problem about how the gods treat their mortal children as disposable. This motivates Ethan to join Luke’s army against Olympus. At some point, Ethan met his mother, who took his left eye in exchange for him one day “balancing the world’s power.” Ethan’s tragic end shows this prophecy coming true in an unexpected way, with implications for a better future for the demigods.

6 Bast

First Appearance: The Red Pyramid

The Kane Chronicles has a completely different setup than Riordan’s take on the other two mythologies, as the human protagonists are magicians and the hosts and liaisons of the ancient Egyptian gods, rather than their descendants. One of the best renditions of these gods to show up early on in the series is Bast, the Egyptian goddess of cats. Like with many of the Greek gods in Percy Jackson, Bast gets a clever modern iteration as she helps the Kane siblings with their mission.

For years, Bast lived in the form of Sadie’s cat Muffin, before revealing her true self to Sadie and her brother. Bast demonstrates affection and casual comradery with the main characters which is rare between the gods and mortals in Percy Jackson, where it is rarely forgotten that the gods are something else entirely. Bast could have a passing encounter with Percy in the show at almost any point, hinting at an even bigger world.

5 Reyna Ramírez-Arellano

First Appearance: The Son Of Neptune

Reyna technically appears for the first time in The Sea of Monsters, as an attendant for Circe when Percy and Annabeth run across her island during their voyage. Disney may already be setting up its Percy Jackson sequel with a reference to Gaia in the first season, who will become the main villain of The Heroes of Olympus. It would be especially daring for them to include Reyna in season 2, giving her just enough focus to establish that she will be important when it is likely they would have to recast her if she comes back years later.

Reyna goes on to become a praetor of Camp Jupiter, the training ground for Roman demigods, and a hunter of Artemis. She is the sister of the Queen of the Amazons and a stoic and skilled warrior. Reyna would be a more difficult character to portray because of how much she withholds. Any actor cast as her would need to show how her tough exterior is only a part of her kind and even romantic personality.

4 Will Solace

First Appearance: The Last Olympian

Will is quietly introduced in the last Percy Jackson book as a medic during the final battle, who treats a seriously injured Annabeth and becomes the head counselor for the Apollo cabin when his half-brother is never found. Will embodies all that is expected of being a son of Apollo, with a sunny, kind personality and an affinity for healing. The Percy Jackson show is likely to put more emphasis on combative skills because it makes for a better spectacle, but Will’s role as a medic is equally important.

Will is always fussing over his patients and urging them to rest, especially his boyfriend Nico. Will and Nico start dating sometime after The Heroes of Olympus, making for a classic sunny and moody pairing. Their dynamic works because while Nico is very introverted, Will is welcoming and always reaches out to others, which is how he and Nico become friends. Someone as cheerful as Will is going to be a great addition to the show when everyone else is serious or sarcastic; Will could also be introduced earlier than he is in the books.

3 Blackjack

First Appearance: The Sea Of Monsters

Blackjack is hopefully one of the characters who will soon be cast for Percy Jackson season 2 when he is possibly the only character in the series who is funnier than Percy. Blackjack is a pegasus who Percy frees from Luke’s warship in The Sea of Monsters, prompting Blackjack to become his loyal steed. Because his father Poseidon created horses in Greek mythology, Percy can telepathically communicate with horses and similar animals, a hilarious revelation that was cut from season 1.

Therefore, Percy can always “hear” Blackjack talking, whose relentless enthusiasm and dedication are comedy fodder. Percy and Blackjack’s interactions and adventures are all great, including Blackjack waking Percy up at the crack of dawn and Percy repeatedly saying there’s no need to call him “boss.” Having a fully formed character who is not human or a god will help flesh out the show’s world when interacting with magical creatures is a major part of the demigods’ lives.

2 Magnus Chase

First Appearance: The Sword Of Summer

Towards the end of The Heroes of Olympus, Annabeth mentions that she has an estranged cousin she wishes she had gotten in touch with. This brief comment opens up a whole new segment of the world and the Riordanverse saga when it turns out that Annabeth’s cousin Magnus is a descendant of the Norse gods. Magnus is the demigod son of Frey, the Norse god of peace, fertility, wealth, and sunshine, and a major challenge for the Percy Jackson show to incorporate.

Magnus is a more mature version of the character Percy started out as, illustrating how far Riordan’s writing has come with how he builds upon his favored character archetypes. Magnus is sarcastic like Percy, but his story has an even darker beginning. As far as the show is concerned, there is the potential to branch off into different perspectives at some point, perhaps following Magnus while the events of Percy Jackson and The Heroes of Olympus are happening.

1 Alex Fierro

First Appearance: The Hammer Of Thor

Magnus’ journey includes meeting Alex, as well as Alex’s half-sister Samirah, the latter of whom is Magnus’ Valkyrie. Therefore, if Alex turns up in the show it will certainly be as a part of Magnus’ storyline. Alex and Samirah are the children of the trickster god Loki; Alex also becomes Magnus’ romantic partner. Disney’s Percy Jackson show could also fix its LGBTQ+ representation by including Alex much earlier in the story, as Alex is genderfluid and most of the queer characters in the Greek and Roman part of this setting don’t show up until The Heroes of Olympus.

Alex is also just an extremely enjoyable character to read about because she is funny, friendly, and loves to “flaunt the weird.” Alex also faced a lot of discrimination growing up because of his gender and Norse heritage, something other characters in Magnus Chase and the Gods of Asgard also experienced in different forms. Percy Jackson and the Olympians stands to become a much stronger show tackling a lot of real-world issues if they figure out a way to incorporate characters from the spinoffs, either through cameos or parallel storylines.