Ciri

When Nilfgaard invades Cintra, Queen Calanthe sends Ciri away and tells her to find Geralt of Rivia. Captured by Cahir, the girl lets out a scream that knocks down everything around her and escapes. Alone, she meets Dara, an elf boy, and reaches the forest of Brokilon, where the dryads take her in. A fake Mousesack sent by Cahir tries to take her, but Ciri sees through it and runs. After the battle of Sodden, she finds Geralt in the forest and asks him who Yennefer is.

At Kaer Morhen, Ciri trains with the witchers and insists on going through the mutations. Vesemir learns she carries Elder Blood, and Triss helps her with magic. Ciri admits she toppled a monolith in Cintra, which brought monsters into the world. Yennefer teaches her to open portals. At Kaer Morhen, Voleth Meir possesses the girl. Ciri drives the creature out and saves Yennefer.

On the run with Geralt and Yennefer, Ciri keeps training and goes with Yennefer to Aretuza. She exposes a con artist and kills a wyvern. After a fight with Yennefer she runs off alone, and Geralt saves her from the riders of the Wild Hunt. In the coup at Aretuza, Vilgefortz chases her to Tor Lara, where she draws on a monolith's power and ends up in the Korath desert. There she heals a unicorn with fire magic that nearly consumes her. Surrounded by bounty hunters, she's rescued by the Rats and says her name is Falka.

Ciri renounces her powers and lives as Falka among the Rats. She earns the gang's trust during a robbery but struggles with their mercenary side, like the kidnapping of a boy. She falls for Mistle, who figures out who she is and keeps the secret. At night, Ciri catches herself saying Geralt's name in her sleep. Ciri leaves the Rats at one point, but goes back when she hears they're in danger. The bounty hunter Bonhart captures her and beheads Mistle in front of her.

Held by Bonhart, Ciri hears from him the story of the Rats before she came along: the raid on Bert Brigden's vault, the witcher Brehen and Mistle finding Juniper again. Bonhart calls her Falka the whole time.

In the books, Ciri first appears in the story Sword of Destiny, where she meets Geralt in the forest of Brokilon. Her full name is Cirilla Fiona Elen Riannon. Freya Allan plays her on the series.