How to Write Character Introductions in a Screenplay

A character introduction in a screenplay puts the NAME in capitals with an age in parentheses the first time the character appears, followed by one line that tells the reader who this person is rather than what they look like. It is the only description the character gets, so it should carry the trait the story will use.

Updated 2026-09-22 · About 6 sections · 5 answered questions

How to write a character introduction: the format

The first time a character appears in an action line, their name is set in ALL CAPS, followed by an age in parentheses, followed by a short description. After that first appearance, the name is written in normal case for the rest of the script.

INT. PAWN SHOP - DAY

RUTH OKONJO (50s) counts a stranger's wedding rings into a
tray without looking at them. She has done this a thousand
times and it still costs her something.

The bell over the door. Ruth does not look up.

The pieces:

NAME in caps. The full name if the script will use it, otherwise the name the dialogue will use. It must match the character cue exactly, so a character introduced as RUTH OKONJO whose cue is RUTH should be introduced as RUTH.
Age in parentheses. A number or a decade: (34), (50s), (late 20s). Some writers use commas instead, RUTH, 50s,; both are accepted, the parentheses are more common.
One or two lines of description. What the reader needs to see this person, and nothing else.

Caps on first appearance exist for production: casting, scheduling and breakdown all scan for them. In a spec script they also do a reading job, telling the reader that this is someone to remember. That is why you capitalise only on the first appearance. A name capitalised every time is noise. The layout is the same as any other action line, full width from the left margin, and Zen Writer places it there for you.

One vivid line, not a police report

The most common introduction in unsold scripts is a description a police officer could work from: height, build, hair colour, eye colour, clothes. It is useless twice over. Actors do not come in the height you specified, and hair colour tells the reader nothing about who the person is.

WRONG:
RUTH OKONJO (52) is a tall, slim Black woman with short grey
hair, brown eyes and reading glasses. She wears a green
cardigan and jeans.

RIGHT:
RUTH OKONJO (50s) counts a stranger's wedding rings into a
tray without looking at them.

The second version describes nothing about her appearance and tells you more about her than the first. The trick is to introduce a character in the middle of a behaviour that only this person would perform in this way, ideally while the scene is already in motion. What she does, how she does it, and what it costs her.

Three things a good introductory line does:

It shows the trait the story will use. If Ruth's arc is about learning to look at people, introduce her not looking.
It gives the actor something to play. "Does this a thousand times and it still costs her" is a note an actor can act. "Tall and slim" is not.
It has a voice. The introduction is one of the few places in a screenplay where the writer's prose is allowed to be noticed. A dry wit or a sharp image here sets the tone for the read.

Physical detail is allowed when it is character. A scar the story will explain, a suit too expensive for the job, a limp. The test is whether the detail would change how the scene plays. If it would not, it is inventory.

Character description examples: good and bad

Weak	Stronger	Why
DEV RANA (28), a handsome, charming young man with a great smile.	DEV RANA (28) is already apologising before the door is fully open.	"Handsome and charming" is a casting request. The apology is a character.
MARGARET (60), a stern, no-nonsense businesswoman.	MARGARET (60) reads the contract while the lawyer is still explaining it, and finds the clause first.	Adjectives claim a trait; behaviour proves it.
JONAH (8), a cute kid.	JONAH (8) has lined up every shoe in the house by size. He is not finished.	Children especially need a behaviour, because "cute" describes every child ever cast.
CAL (40s), a weathered ex-Marine who has seen too much and carries the weight of his past.	CAL (40s) sits with his back to the wall and his eyes on the door, in a diner, at noon.	Backstory is unfilmable. The habit is the backstory, shown.
THE STRANGER (30s), mysterious.	THE STRANGER (30s) pays for the coffee with a bill so new it has never been folded.	"Mysterious" is an instruction to the audience. The bill is a mystery.

Notice that the strong versions are not longer. Most are one sentence. The improvement is not more words; it is the choice of a behaviour over an attribute.

Two habits worth dropping. First, describing a woman by her attractiveness and a man by his job, which readers notice and increasingly flag. Second, the wry aside that describes the character's whole life ("the kind of guy who peaked in high school and knows it"). One of those per script is voice; one per character is a tic.

Introducing groups, minor characters and returning characters

Groups

Introduce a group as a group, then pick out the individuals the scene will use. Do not give six names in one paragraph; the reader will not retain them and does not need to.

INT. STAFF ROOM - MORNING

Six NURSES at the end of a night shift. Nobody is talking.

Among them, PRIYA (30s), the only one still in her shoes, and
DOM (20s), asleep upright with a coffee in his hand.

Two named, four background. If a third nurse gets a line later, name them then, in caps, where they first speak or act.

Minor characters

A character with one or two lines gets a role name, not a name: WAITER, SECOND COP, WOMAN IN RED. Capitalise on first appearance like anyone else, and describe in a few words if the description affects the scene. Giving a one-line waiter a full name and an age tells the reader he will matter, and when he does not, the reader feels cheated and casting has one more speaking part to fill than necessary.

The exception is a character who returns. If the waiter comes back in act three, name him now so the reader can find him. Consistency matters more than the choice: whatever cue you use, use it identically every time, or the character list and every breakdown will show two people. Zen Writer's characters list, collected automatically from the cues, is the fastest place to spot a WAITER and a WAITER #1 who were meant to be the same person.

Returning characters

No caps, no age, no description on later appearances. If a character has changed in a way the scene needs, say so in the action as you would for anyone: "Ruth, thinner, in the same cardigan." A character introduced in a flashback as their younger self is usually cued YOUNG RUTH and introduced in caps once, separately, with the age.

Casting implications: what the age and description signal

The introduction is read by more people than any other line about the character: the reader, the producer, the casting director, the actor's agent. What you put there has consequences.

Age ranges cast wider than numbers. (50s) lets casting consider a decade of actors; (52) reads as a specification. Use a number only when the plot depends on it: a character who must be exactly eighteen, or exactly too old for the draft.
Ethnicity and other identity details belong when they matter to the story, and should be stated plainly when they do, because the alternative is a reader defaulting to whatever they assume. Leave them out when they do not, and the role can be cast openly.
Physical requirements should be real requirements. If the character has to be tall enough to reach the shelf in the plot, say so. If not, an actor of any height can play her.
"Beautiful" and "handsome" are not descriptions. Every lead will be played by an attractive actor. Tell the reader what else is true.
The behaviour you choose is the audition. Actors read introductions to decide whether the part is worth reading for. "Counts wedding rings without looking" is a scene they can already see themselves in.

The introduction also sets how much the character weighs in the script. A half-page introduction promises a lead; a clause promises a day player. Match the length to the role and the reader's expectations will be right. The free character line count and screentime report shows who actually carries the script, which is worth checking against who got the longest introduction.

Character introduction mistakes that mark a draft as amateur

Caps on every appearance. First appearance only.
No age. Readers and casting need it. A decade is enough.
The police report. Height, hair, eyes, clothes. Replace with a behaviour.
Backstory in the description. "A former champion who lost it all." Unfilmable. Show the habit the past left behind.
Introducing a character who is not on screen. Someone mentioned in dialogue is not introduced until they appear; leave the caps until then.
Cue and introduction that do not match. Introduced as ELIZABETH, cued as LIZ. Pick one; the character cue must be identical every time.
Naming everyone. Six named baristas in a coffee shop scene. Name the ones who matter.
Adjectives instead of actions. Stern, mysterious, charming, troubled. Each one is a behaviour you have not yet written.

Every one of these is visible on page one, which is where most scripts are judged. Get the first introduction right, in the middle of a behaviour, and the reader trusts the rest. The craft continues in how to write dialogue, where the voice you promised in the introduction has to hold, and across the screenwriting guides. If you draft on a tablet, Zen Writer for iPad formats the introduction as action and collects the character into the list the moment you give them a cue.

Frequently asked questions

Do I put a character's age in a screenplay introduction?

Yes. Put it in parentheses after the capitalised name on first appearance: RUTH (50s) or RUTH (34). A decade is usually better than an exact number because it casts wider; use a precise age only when the plot depends on it. Omitting the age is a common note from readers.

Should I describe what my character looks like?

Only when the detail affects the story. Actors will not match a height or hair colour you specify, and a physical inventory tells the reader nothing about who the person is. Introduce the character through a behaviour that only they would perform, and add a physical detail if it is genuinely character.

Do I capitalise a character's name every time it appears?

No. Capitalise the name in action lines on first appearance only, then write it in normal case for the rest of the script. Character cues above dialogue are always capitalised, which is a separate convention. Capitalising every mention in action is a common amateur signal.

How do I introduce a character who has no dialogue?

The same way: name in caps, age, one line of behaviour, on their first appearance in action. If the character never speaks and never returns, a role name such as MAN AT BUS STOP is enough. Name them only if the reader needs to track them across scenes.

Should a one-line waiter get a real name?

No. Use a role name in caps, such as WAITER, and keep the description to a few words. A full name and age promises the reader that the character will matter, and it adds a named speaking part to the casting breakdown. Name the waiter only if he returns later.

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Screenwriting Education

How to Write Character Introductions in a Screenplay

How to write a character introduction: the format

One vivid line, not a police report

Character description examples: good and bad

Introducing groups, minor characters and returning characters

Groups

Minor characters

Returning characters

Casting implications: what the age and description signal

Character introduction mistakes that mark a draft as amateur

Frequently asked questions

Ready to turn this idea into a screenplay?

Continue reading

How to Write Action Lines in a Screenplay

How to Write Dialogue in a Screenplay:

How to Format Dialogue in a Screenplay:

How to Write a Scene in a Screenplay:

Character Line Count & Screentime

Cast, Location & Prop Extractor

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