Designs and locks the cast of an AI animated film before any shot is generated, so faces do not drift between cuts. Covers the silhouette test, the hard-feature rule, the three-panel painted character sheet, value-key checks, registering head-and-shoulders Reference Elements, props and location plates, and holding identity with approved frames. Use when creating characters, character sheets, turnarounds, reference elements, or fixing a character who looks different from shot to shot.