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# What is Character Casting?

Character Casting detects characters in your manuscript, proposes a voice for each detected character, and lets you preview them on real dialogue from your book.

Character detection is AI-generated and should be treated as a starting point. The system may not identify every character, especially minor characters, unnamed characters, or speakers who are difficult to distinguish from the surrounding narration.

When you change a character's voice, every line they speak updates across the entire book.