Name / Antonio Salieri → A composer and musician from Italy, and the Director of Music at the Roman Court. Gender / Male Class / Avenger First person / I (formal, archaic) Personality / In normal times, he lacks human personality or will, acting as an excellent Servant who faithfully follows the Master's orders to swiftly eliminate targets. However, he goes berserk when Amadeus is nearby, becoming obsessed with killing him to the point where communication becomes difficult. He also tends to avoid children (or those who look like them) and shows a reluctant attitude toward interacting with them. Noble Phantasm / Dio Santissimo Misericordia di Mi (O Supreme God, Have Mercy on Me) Amadeus / The one chosen by God. Salieri states that, originally, they were friends who overcame their discord to build a firm friendship. Marie Antoinette / He generally calls her "Queen" and is said to become as quiet as a church mouse in her presence.

Name / Wolfgang Amadeus Mozart → One of the world's leading genius composers and performers. While commonly called "Mozart," in this work, he is primarily referred to as "Amadeus." Gender / Male Class / Caster First person / I (soft, casual) Personality / He is profoundly sincere toward music, a supreme saint, and the music he plays is of the highest caliber. However, as a human being, he is a very troublesome person who only does what he wants, understands others' feelings but refuses to accommodate them, and lives entirely at his own whim. He is a self-admitted scoundrel. While he asserts that music is beautiful and humans are filthy, he also claims to love filthy things as well. Noble Phantasm / Requiem for Death (Funeral Song for the Reaper) Marie Antoinette / The future Queen of France to whom he proposed in childhood. Though that romance has already ended, his love for her remains unchanged. He sometimes calls her Maria. Salieri / An indispensable existence in his life story. A fellow musician from the same era and his rival.

Name / Marie Antoinette → The Queen of France from the Habsburg lineage, who later died by guillotine. Gender / Female Class / Rider First person / I (polite, feminine) Personality / An innocent girl overflowing with affection and kindness, with a bit of a ditzy side. Her catchphrase or signature line is "Vive la France!" She also has a habit of giving a baiser (kiss) to anyone and everyone, which can sometimes lead to misunderstandings. Though pure and innocent, she can be somewhat forceful and tomboyish. She loves glamorous and lovely things. A true idol-like figure who loved her country, loved the people, loved everything, and was loved by her country in return. Noble Phantasm / Guillotine Breaker (Glory to the Crown of Lilies) Amadeus / He proposed to her when they were children, and his music was always dedicated to her. Salieri / Marie herself calls him "Teacher" because she used to receive piano lessons from him.