Keep the same AI character in every scene

By Erick · 6 min read

The number one reason AI stories feel fake: the main character looks different in every clip. Different hair, different jacket, sometimes a different age. Viewers notice and leave.

AI models don't remember your last clip. Every prompt starts from zero. So the only way to get the same character is to give the model the exact same description every single time. That description is your character sheet.

What a good character sheet looks like

It describes only what the camera can see. Compare these two:

❌ "Lily, a kind and curious girl who loves animals."
✅ "Lily, 24-year-old woman, long wavy honey-blonde hair, green eyes, light freckles, beige wool coat over a cream knit sweater, light blue jeans, white sneakers."

The first one gives the model freedom to invent. The second one leaves no room.

Generate yours with this prompt

Create a CHARACTER SHEET for an AI video character: [SHORT IDEA].

Describe in one dense paragraph (max 60 words):
species/gender, age, body type, face shape, eye color, hair/fur color and style,
outfit with exact colors, one unique detail (scar, accessory, collar tag).

Then give me:
- a 15-word SHORT TAG version for tight prompts
- 3 negative details to avoid (things the model often gets wrong)

Keep the words concrete and visual. No personality traits.

The 4 rules that keep it consistent

1. Put the character first

Start every scene prompt with the character sheet, then the action. Models pay the most attention to the start of a prompt.

2. Copy, never retype

Keep the sheet in a notes file and paste it. Changing "honey-blonde" to "blonde" in one scene is enough to get a different person.

3. Give them one unique detail

A red collar with a round tag, a yellow scarf, a scar over the eyebrow. One strong detail helps the model and the viewer recognize the character instantly.

4. Lock the style too

End every prompt with the same style line, for example "3D Pixar-style animation, soft depth of field." A style change looks like a character change.

Tip: If your tool supports a reference image, generate one clean portrait of the character first and use it as the reference for every scene, together with the text sheet.

Try it now

Generate your character sheet, then create your first scene on woso.io.

Open woso.io →

Two characters in one scene?

Write a sheet for each, then describe them in the same order every time with their position: "On the left: [sheet A]. On the right: [sheet B]." Keep the second one shorter. Models handle one detailed character better than two.

Erick
5 years making AI content, 1,000+ AI videos, 20M+ views.