Character sheet

What goes on the sheet

A usable sheet is not a nice drawing of the character. It is a set of controlled views, drawn at consistent scale on shared guide lines:

• A turnaround — front, three-quarter, side, and back. The three-quarter is the one you will actually draw from most, and the one people skip.
• Height comparison against the rest of the cast, on the same horizon. Relative height is the thing readers notice first and artists drift on fastest.
• Expressions — six to ten, and not just the pleasant ones. Neutral, angry, frightened, laughing, crying, and the character’s particular tic.
• Costume details shown close up: how the collar fastens, which side the scar is on, how many buttons. These are exactly the details that silently change over a chapter.
• Colour swatches with values written down, not eyedroppered by memory each time.

Consistency is a reader-trust problem

Readers do not consciously check whether a character’s hair parts on the same side in chapter six as in chapter one. They do register that something is off, and the cost is attention: a moment spent re-identifying who is on the page is a moment not spent on the story. In a cast of more than four, silhouette and a single hard identifier — an eyepatch, a jacket, hair colour — do more for legibility than accurate faces.

This is also why sheets matter most on long-running serials and on any project with more than one artist. A studio drawing a weekly webtoon has assistants who have never met the character; the sheet is the entire specification they work from.

Why it matters specifically for AI generation

Image models do not remember. Each generation starts from nothing, so “the same character” across twenty panels is not something the model maintains — it is something you supply. A character sheet becomes the reference image passed into every generation, and the quality of the sheet directly caps how consistent the output can be.

What makes a sheet work as an AI reference is slightly different from what makes it work for a human artist:

• Plain background, even lighting. A dramatic sheet teaches the model the drama.
• Multiple angles in one image beats a single portrait. A front-only reference produces a character who turns into someone else the moment a panel needs a profile.
• Expressions matter more than in traditional use, because a neutral-only reference collapses every emotional beat into the same face.
• Write the description too. A short, fixed text block — age bracket, hair, eyes, build, the two costume details that must never change — pasted into every prompt catches drift the image reference misses.

Lock the sheet before generating pages. Revising a character after forty panels exist means regenerating all forty, which is the AI equivalent of redrawing a chapter, and the reason the sheet belongs in the same planning stage as the beat sheet and the script.