CD Projekt Red used AI to restore Geralt's Polish voice for The Witcher 3 expansion

What the studio did

CD Projekt Red used AI to restore the Polish voice of Geralt of Rivia for The Witcher 3: Songs of the Past, the game's latest expansion. The work was reported by GameFile and covered by Gamelade on 12 November 2026.

The voice belongs to Jacek Rozenek, the Polish actor who has played Geralt. A stroke in 2019 left his voice noticeably deeper and hoarser than in the original game, which created a technical mismatch with recordings made years earlier.

How the voice was rebuilt

Rather than recast the role, the production team worked with Respeecher, a Ukraine-based technology company, to reconstruct Rozenek's younger voice. The localization team supplied the dialogue Rozenek had recorded for the main game to train the model.

Dmytry Vasylets, a sound specialist at Respeecher, said the goal was a voice that sounded alive, expressive and young, matching the original. Test recordings showed a smooth and consistent result, according to the report.

The process applied only to the Polish version. Doug Cockle, who voices Geralt in English, is in good health and needed no technical intervention for the expansion.

Consent and limits

Rozenek backed the project. He said he trusted the creators of the fantasy world and wanted his voice restored as closely as possible to how it sounded twelve years earlier.

Mikołaj Szwed, who leads localization, described the case as an exception made because of the actor's medical condition. He said it followed the rules of voice-acting contracts to protect the artist's interests.

Respeecher had previously helped CD Projekt Red complete unfinished roles for a deceased actor in Cyberpunk 2077.

The wider debate

The decision comes as game studios face criticism over synthetic voices. Embark Studios drew heavy public pressure for using simulated voices in Arc Raiders and had to re-record its character system with human actors.

CD Projekt Red's approach differs: the AI was used with the original actor's consent to preserve his own performance rather than replace a performer. The report did not say whether the technique will be used in other languages or future titles.