OC generator with a character card that actually gets played
Fill in a card, or roll a random one, then put your OC in a scene with someone who does not know their secret.
Coffee shop AU
A tiny café on a rainy Tuesday afternoon. The espresso machine is broken and the only open table is by the window.
In shortCastfic is an OC generator that goes further: write or randomize a card with a voice, motive and secret, then your OC is played separately in a trope scene. One click rewrites it as prose or a screenplay, and a memory goes back on the card. 1 free scene without an account, then 1 a day with Google sign-in.
How to make an OC and test them in a scene
- Open a new card. Fill in name, pronouns, how they look, a sample of how they talk, what they want and a secret. Or press random OC.
- Add one or two more characters, yours or random ones, and set how they are related.
- Start a coffee shop AU or any other trope and press play.
- Read how your OC behaves. If a line feels wrong, edit the card and redo the round.
What goes on a card
- Voice: two or three sample lines matter more than adjectives. "Dry, quick, teases when nervous" works; "funny" does not.
- Motive: what they want in this scene, in one sentence.
- Secret: the one thing only they know. It is what makes scenes interesting.
- Look and pronouns, for the prose rewrite.
- Up to 8 saved characters on the free plan.
This is a text tool. It does not draw your OC; use it for the part that is usually hardest to fake, which is how they sound next to someone else.
Same scene, two different OCs
Scene: a coffee shop on a rainy Tuesday, one free table. Two example cards, two example lines each. (Illustrative.)
| Character | Card in one line | Line in the scene |
|---|---|---|
| Tobias Quill | Clock repairer, formal, bad liar, secretly lonely | "I would not call it your table, exactly. It has simply been mine at this hour for six years." |
| Ines Varga | Bike courier, talks fast, keeps promises | "Great, we both lose the table. I'll sit on your left and you can not mention it." |
The point of the test is not who wins the table. It is whether each line could only come from that character.
Why test an OC in a scene
A card tells you who they are on paper. A scene shows what they do when someone else wants the same thing. After the scene a memory is saved on the card, so the next scene starts from what happened.
How Castfic compares
| Castfic | Sudowrite | NovelAI | Talefy | Type.ai | ChatGPT | |
|---|---|---|---|---|---|---|
| Free tier | 1 free scene without an account, then 1 a day with Google sign-in, plus a free Daily Scene | Free trial, no card; no ongoing free plan | Free trial: 50 text generations | Free account | Free plan with limited credits | Free plan with usage limits |
| Cheapest paid plan | $4.99 for 15 scenes, or $7.99/mo | $10/mo | $10/mo | From $1.99 | $8/mo billed yearly | $20/mo (Plus) |
| Characters keep separate secrets | Yes, each is played separately | — | — | — | — | — |
| Scene to prose or screenplay | One click: prose or Fountain, 4 styles | Writes prose | Writes prose | — | Writes prose | Prose if you ask |
| OC memory across sessions | Written back to each character card | Story Bible | Lorebook | — | — | — |
| All-ages by design | Yes, 13+ with filters on | — | — | — | — | — |
Competitor details are from each product's public pages in October 2026 and may change. Product names are trademarks of their owners; Castfic is not affiliated with them.
Frequently asked questions
Does it make pictures of my OC?
No. Castfic is for the written side: voice, motive, secret and how they act with others.
Can I import an OC I already made?
Yes. Import a SillyTavern card (PNG or JSON), or paste your description into a new card.
Is my OC private?
Yes. Cards and scenes stay in your account. Share links are off by default and shared pages are noindex.
Can I use characters from a show or book?
Yes, as your own fan version: write their card in your words. Don't paste scripts or chapters, and Disney, Pixar, Marvel, Lucasfilm, Nintendo or Pokémon characters are blocked.
How many OCs can I save?
8 on the free plan, 200 on Plus.
Try it with your own characters
1 free scene without an account, then 1 free scene a day after signing in with Google, plus the free Daily Scene.
Try a scene free