Reading list: What prompt-engineering techniques work best for character continuity?
To maintain consistent characters in AI storyboard, prompts must stay clear and repeat the same character details in every scene. Using fixed traits like clothing, face, and body type helps improve character consistency in AI art. When working with an AI generated storyboard, always mention the same character name and description so the AI storyboard generator understands continuity. Many AI storyboard software tools support this method, making it easier to create a storyboard with consistent characters. This approach is widely used in storyboard AI for filmmakers for better visual flow.
Conclusion
Clear and repeated prompts are the key to keeping characters consistent when using any AI storyboard tool.

https://murphy.inc/consistent-characters-in-ai-generated-storyboard/