How to Build a Consistent AI Character Across Images and Video (2026)

Recurring spokesperson series on Astorie: build the five-pose canonical sheet with Nano Banana 2 (front, three-quarter left, three-quarter right, profile, smiling close-up) and lock the face. For each weekly episode, drop a Nano Banana 2 node for the new scene (kitchen, office, outdoor walk, studio backdrop), wire in the front and smiling references, and pin the chosen still. Use Flux Kontext to put the character in that episode's outfit without touching the face. Drop a Kling Avatar or OmniHuman node downstream, wire the still plus an ElevenLabs audio node carrying the script, and prompt for "subtle gestures, eye contact with camera, slight head movement on emphasis." Render two takes, pick the stronger, send the hero frame through an image-upscale node for the thumbnail, and wire the clip into the NLE export node with intro and outro. Repeat per episode — the character looks like the same person every week because the sheet is shared across every node.