Character types

In practice

Character types are a vocabulary for how much a character can do in a story. A round character is complex enough to surprise us; a flat one is built on a single trait. A dynamic character changes over the story; a static one stays the same. A stock character is borrowed from a familiar type. None of these is a grade: every good story mixes them, and knowing which a character is helps you decide how much of the page to give them.

For screenwriters, the labels are practical. A feature film has room for two or three fully round characters, so most of the cast has to be readable in a line or two of action and a few lines of dialogue. Deciding early who is round and who is flat keeps a script lean, and deciding who changes and who doesn't is the same as deciding whose story it is.

The common mistakes are making every character round, which clutters the story and buries the lead; making the protagonist flat, so the audience has nothing to follow; and confusing static with flat. A character can be complex and still not change, and a character can change in a story that never lets us see their inner life.

A round character beside a flat one

The waitress is a flat character on purpose: one trait, kindness, drawn in a line, and she does her job in the story without needing more. Ray is round, because his pride and his fear pull against each other, and the twenty he takes back shows both in one gesture. Whether he is dynamic is a question the whole film answers; a single scene can show that a character is complex, but only the story can show that they change.

Round and flat characters

The novelist E. M. Forster named the pair in Aspects of the Novel (1927). A flat character, he wrote, is "constructed round a single idea or quality" and can often be summed up in a sentence: the gossip, the loyal servant, the bully. A round character has many traits, some of them in conflict, and Forster's test was whether the character is "capable of surprising in a convincing way."

Flat is not an insult. Forster pointed out that flat characters are easy to recognize and remember, and Dickens filled his novels with them. In film, the flat characters are the cab driver, the receptionist and the rival's henchman, who need to make one clear impression and get out of the way so the round characters have room.

Round characters are usually the protagonist, the antagonist and the people closest to them. They have contradictions (a brave person who is afraid of commitment), a past that shapes their choices and an inner life the story lets us see. Hamlet, Elizabeth Bennet and Michael Corleone are round: you can argue about why they do what they do.

Dynamic and static characters

A dynamic character changes in an important, internal way over the course of the story: their beliefs, values or understanding of themselves. Ebenezer Scrooge is the textbook example, turning from miser to benefactor in one night. Most protagonists are dynamic, because the change is the story's emotional payoff, and the change is usually called the character arc.

A static character stays essentially the same. That can be a weakness, but it is often a choice. Detectives like Sherlock Holmes and action heroes like James Bond are largely static across their stories, and the pleasure is in watching a fixed personality meet a new problem. Static supporting characters also give the dynamic ones something stable to change against.

Static and flat are not the same thing. Holmes is static but round: complex, contradictory and full of surprises, without fundamentally changing. And a dynamic character's change must be internal; a character who only changes jobs, cities or haircuts has had events happen to them, not an arc.

Stock characters

A stock character is a type the audience recognizes from convention: the wise mentor, the mad scientist, the jock, the nerd, the femme fatale, the grizzled cop one day from retirement. They come with ready-made expectations, which is why writers use them, and why audiences groan when a story uses them without a twist.

Stock characters are old. Ancient Roman comedy had the boastful soldier and the clever slave, and Italian commedia dell'arte built whole performances around masks such as Harlequin, the trickster servant, and Pantalone, the greedy old merchant. Many sitcom characters today are descendants of those types.

A stock character differs from an archetype. An archetype is a deep, universal pattern, such as the hero, the mentor or the trickster, that can be filled with any personality. A stock character is a surface type tied to a genre and an era. Writers often start from a stock character and then give them one specific trait that breaks the mold.

Character types by role in the story

Characters can also be sorted by what they do in the plot. The protagonist drives the story and wants something; the antagonist is the force that opposes them. The deuteragonist is the second most important character, often a partner or rival, and the tritagonist is the third.

Other roles serve the protagonist's journey. A foil contrasts with the protagonist to highlight their traits, as the reckless Mercutio sets off the romantic Romeo. A confidant is someone the protagonist talks to, which lets the audience hear their thoughts. The love interest, the mentor and the comic relief are roles with their own long traditions.

Role types and the other labels combine. A protagonist is usually round and dynamic; a mentor may be round but static; a henchman is often flat, static and stock. Running a cast list through all three questions (how complex, whether they change and what they do) is a quick way to find characters who are doing too much or too little.

How to use character types in your writing

Spend depth where the story needs it. Give the protagonist and the antagonist contradictions, history and choices that cost them something. Let minor characters be flat on purpose, and give each one a single vivid detail so they are memorable without stealing focus.

Make every change earned. If a character is dynamic, map the steps: what they believe at the start, what tests that belief and the moment they choose differently. A change that happens off screen or in one speech feels false, however round the character is.

Twist the stock. When you need a familiar type, keep the shorthand the audience expects and add one specific trait that contradicts it: a mentor who is wrong about something important, a jock who is the most anxious person in the room. The type does the quick work; the twist makes the character yours.