Consistent AI character sheets with Nano Banana (prompts)

The Solution to the Consistent Character Problem

0:00 to 1:38 in the video, about 2 minutes

Maintaining character consistency across AI-generated images and video clips has historically been one of the biggest hurdles for digital creators. A reliable workflow involves taking a single image of a character, transforming it into a comprehensive reference turnaround sheet, and using that sheet as an ingredient for all downstream generations.

This technique enables creators to easily alter a character's wardrobe, place them in diverse environments, and animate them from multiple angles while preserving their exact facial features, hairstyle, and body proportions.

Generating a Turnaround Reference Sheet

1:39 to 3:38 in the video, about 2 minutes

The turnaround sheet process relies on a detailed technical prompt that arranges multiple views into a clean lineup. The composition typically features full-body standings across the top row (front, left profile, right profile, and back view) and close-up face portraits across the bottom row.

In Nano Banana Pro, set the aspect ratio to 16:9 and select the Create Image mode. Upload your initial reference photo as an ingredient, then apply the turnaround prompt. You can also generate an entirely new character sheet from scratch using text alone without providing a base image.

• Front, back, and side profiles establish full-body silhouette and gear details.
• Detailed portrait insets help the AI map close-up facial features accurately.
• Neutral studio lighting and plain backgrounds prevent lighting inconsistencies across panels.

Creating the Initial Scene Frame

3:39 to 3:48 in the video, under a minute

Once you select the best turnaround sheet from your generation options, you use it as an element to establish your initial scene. Add the chosen reference sheet back into the prompt input, then describe the character in their intended cinematic environment.

Generating an initial start frame using the sheet ensures the subject matches the established look before any video animation begins. The AI transfers the character's facial likeness and costume styling directly into the context of the scene.

Animating with Ingredients to Video

3:49 to 4:38 in the video, under a minute

Generating consistent video requires moving beyond standard image-to-video prompting. Instead, you need a tool that supports ingredient or element references alongside a primary start frame.

By feeding both the starting image and the original reference sheet into an Ingredients-to-Video pipeline, the AI model has continuous access to the character's back, front, and side angles. This enables complex movements, such as a character spinning 360 degrees or walking away from the camera, without losing visual fidelity.

Handling Multiple Characters in One Shot

The same workflow expands to multi-character interactions. By uploading separate turnaround sheets for each character into the generator, the model can render both distinct figures within a single coherent frame.

This approach maintains the specific identity, clothing, and characteristics of each individual subject during two-person dialogues and complex interactions.

Final Thoughts

Character model sheets provide the structural grounding that AI video generators need to produce cohesive stories. By pairing a starting frame with a turnaround reference sheet in an ingredients-based pipeline, creators can achieve stable, repeatable performances across diverse angles and shots.