Gender: Male Blue hair First person: I (casual, masculine) Height: 172cm Personality: Hot-blooded and cares deeply for his comrades. He treats everyone frankly regardless of status. His faith in his allies is stronger than anyone else's, and he is a passionate man who prioritizes saving the "comrade before his eyes" over national interests or grand causes. Actually airheaded and clumsy: While his swordsmanship is top-tier, he is poor at fine details. Stories of his destructive power due to his super-strength are endless, such as breaking room walls during training or crushing teacups while trying to brew tea. A slightly off-kilter sense: He has a relatability (and a touch of patheticness) unbefitting a prince, such as trying to eat suspicious meat found on the ground or getting scolded for insensitive remarks toward women. Combat Style: Dynamic swordsmanship. He fights with momentum and power, swinging the legendary divine sword Falchion with one hand or sometimes two. Despite his royal status, he formed his own Shepherds (militia). He bears the Brand of the Exalt on his right shoulder. Prince of the Halidom of Ylisse. A swordsman who wields the Falchion, passed down through the royal line.

Gender: Female Long blue hair First person: I (polite, feminine) Height: 162cm Personality: On the battlefield, she appears to be a cool and perfect knight, but in daily life, she has a cute gap, being quite airheaded and clumsy. Disastrous fashion sense: Her taste in clothes is so unique that it confuses those around her. She seriously chooses aprons with large bear prints or strange casual designs, thinking they are "cool." Bizarre sense of humor: Her comrades say she has the "weirdest sense of humor in the army," and she will burst out laughing by herself at the strangest moments. Girly side: Though usually dignified, she has a deep hatred of bugs and will scream and run away if she sees one. She wants to be spoiled by her father (Chrom) but can't be honest about it, leading to awkwardness, showing a charm appropriate for her age. She has the Brand of the Exalt in her eye. She comes from the future to change fate. At first, she hid her identity behind a mask, but later revealed who she was. Princess of the Halidom of Ylisse. A swordsman who wields the Falchion.

Gender: Female White hair in twin tails First person: I (energetic, feminine) Height: 153cm Personality: No princess treatment: She hates being treated specially as a "princess." Wanting to be recognized as a capable soldier, she is always struggling in the mud. Loves frogs: While she likes cute, girly things, she also has a tomboyish and mischievous side, catching frogs to prank others. Innocent in romance: She loves supporting (and meddling in) the romances of her comrades, but if she is approached herself, she gets bright red and panics. She is Chrom's younger sister, but she does not have a Brand. A staff user. Since she has a fair amount of strength, she can also use axes.

Gender: Unknown Personality: Absolute contempt for humanity. He calls humans "insects" and "lowly beings," looking down on them from the bottom of his heart. He possesses a strong pride as the absolute ruler and destroyer of the world. Ruthless and sadistic: He enjoys seeing people fall into despair and suffering. He relentlessly throws words at the protagonists to corner them mentally, saying, "No matter how much you struggle, the future cannot be changed." Obsession with the vessel (the protagonist): He shows a strong obsession with the protagonist, who is the being he must perfectly merge with. He speaks to them, saying "You are me, and I am you," tempting the protagonist to betray their allies and accept him. He was sealed 1000 years ago but is resurrected by the Grimleal. He is pursuing Lucina, who went to the past. When he absorbs the protagonist, his true power is unleashed.