> This is a page from the ElevenLabs documentation. For a complete page index, fetch https://elevenlabs.io/docs/llms.txt. For the full documentation in a single file, fetch https://elevenlabs.io/docs/llms-full.txt.

# 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.

> ElevenLabs provides APIs and SDKs for text to speech, voice cloning, speech to text, sound effects, voice isolator, voice changer, and conversational AI agents. Build voice-enabled applications with lifelike audio generation.