The protagonist of the story. Both as an Un-Sorcerer and a poor farmer who had to withdraw from military academy in the past due to lack of funds, Rygart leads a simple life with few opportunities. His life changes, however, when Hodr summons him to the capital and it's discovered that he's the only one capable of piloting the ancient Golem, Delphine.
A friend of Rygart from military academy. Currently married to Hodr and thus the queen of Krisna, though she is in love with, in fact, Rygart. She spends most of her time doing research or work with the royal engineers.
The Engineer: No physical capability whatsoever, but you can thank her for plenty of the work on the Golems.
Friendly Enemy: She gets along very well with Cleo while the latter is held prisoner.
Happily Married: Averted. She only married Hodr in hopes of Rygart would do something about it. While she doesn't hate Hodr, it's clear she only thinks of him as a friend and doesn't even wear her wedding ring.
One of the highly respected Generals of Krisna and Girge's father. He acts as a mentor figure towards Rygart, as the latter adjusts to the life of war.
Married to the Job: He notes that he didn't get to spend much time with Girge due to being a General.
Parents as People: He does care about Girge, but ultimately has to prioritize his duties as a soldier and therefore didn't make for a very good father while Girge was growing up and has to acknowledge that, son or not, Girge is a threat to everyone around him.
Death Seeker/Not Afraid to Die: Rygart thinks he might be the former, though it seems less that Girge actively wants to die and more so that he just doesn't care about living (or much of anything) anymore.
Heel Face Door Slam / Redemption Equals Death: He shows signs of changing after Rygart gets through to him, expressing some loyalty and friendship towards him—but then they're captured and Girge sacrifices himself for the other man before anything worthwhile can come out of it.
Rygart, Sigyn, and Hodr's old friend from military academy, and the younger brother of the Secretary of War of the Commonwealth of Athens. Despite his past friendship with the others, he is now their enemy.
Evil All Along: He's been working against Krisna from the very beginning, back during their time in the academy.
Face-Heel Turn: Not evil by any means, but in the past, he was strongly against war, making it a surprise to Rygart, Hodr, and Sigyn that he seems to have changed his mind out of loyalty to his brother. And he might not have been so against conflict in the first place—see Evil All Along.
An infamous General of Athens, due to his ruthlessness in war. While initially under house arrest due to committing war crimes, he is released to fight against Krisna.
Colonel Kilgore: Whilst he has no particular grudge against his enemy, and usually treats war with cool professionalism, he gets really fired up when it looks like he might be up against a Worthy Opponent.
Combat Tentacles: His Golem has a pair of them, each shaped to resemble a scorpion's tail.