Red Archer (Archer of "Red", "赤"のアーチャー, ?) is the Archer-class Servant of the Red Faction in the Turifas Holy Grail War of Fate/Apocrypha. She was designed by Myougaya Jinroku and illustrated by Genji Asai for the original canceled online game project.
Archer's identity is Atalanta, the Chaste Huntress (純潔の狩人, Junketsu no Karyuudo?) is a Servant of the Archer class designed by Myogaya Jinroku, she is a huntress in Greek mythology. Born in the natural paradise Arcadia, she speaks in an old fashion. She was abandoned in the mountains immediately after birth, and survived by being nurtured by a female bear, sacred beast of the goddess Artemis. She has the same egotism and view on life and death as a wild animal, so it is natural to her to steal food to live. However, she will help any child left behind as much as she can, as gratitude for the care she received herself. Her wish to the Holy Grail is for a world where every child can be raised with love.
Though she was born as the princess of Arcadia, Atalanta was abandoned in the mountain, but she survived thanks to divine protection from Artemis. In gratitude, she is a fervent follower of Artemis. She grows into an excellent huntress, and accompanies the Argonauts. She is most known for the hunt of the Calydonian boar. She then returned to her birth land, but her father, who never had a son, commanded her to get married. As she had pledged a vow of virginity to the goddess, she proclaimed "I will only marry one who can beat me in a footrace. Those who lose will be killed." She tore through a great number of challengers, but at last, she lost when she was tricked into picking up irresistible golden apples thrown in front of her, and she had to break her vow.
Atalanta is briefly mentioned in Fate/Extra as a passing Servant of an unnamed Master by Saber in a Private Room conversation. She praises Atalanta as a beautiful huntress and one of the examples of a beautiful Heroic Spirit, unlike the "ugly" ones like pirates and thieves. The mention is unrelated to the Apocrypha design, and she does not make an actual appearance. The manga adaptation of Fate/Extra combines the two aspects, featuring a brief cameo of the Apocrypha Atlanta design. They briefly fight Lancer, but the fight is stopped by Saber. She and her Master perish in the Moon Cell Holy Grail War.