The Foundational Principle: Action Is Character
"A person is what they do, not what they say." This single sentence from Syd Field's Screenplay: The Foundations of Screenwriting encapsulates the most important principle in character creation. Characters are defined by their actions, not by their dialogue or physical descriptions. Every decision a character makes, every obstacle they face, every moment of hesitation or courage — these are the raw materials of character.
This principle isn't merely philosophical. It has direct, practical implications for how you write every scene. If you want the audience to know your protagonist is brave, don't have another character say "She's so brave." Show her walking into the burning building. If your antagonist is manipulative, don't explain it — let us watch him dismantle someone's confidence in real time.
The Four Core Elements of Character
Field identifies four essential elements that form the foundation for creating a strong, well-developed character. Think of them as the four pillars holding up the entire architecture of your protagonist.
1. Dramatic Need (La Necesidad Dramática)
Definition: What the character wants to gain, acquire, obtain, or achieve during the course of the screenplay.
This is the engine of your story. Once you establish what your character needs, you can create obstacles between them and that need. The story becomes the character overcoming — or failing to overcome — those obstacles.
Examples:
- Tootsie: Michael Dorsey needs to successfully pass as a woman to land a well-paying soap opera role, then needs to win over Julie Nichols
- The Hustler: Eddie "Fast" Felson needs to defeat Minnesota Fats and win ten thousand dollars in one night
The dramatic need must be specific and concrete. "Wants to be happy" is too vague. "Wants to win custody of her daughter before the court date in three weeks" is a dramatic need that generates story.
2. Point of View (El Punto de Vista)
Definition: How a character sees the world — their individual worldview and perspective.
Every person has a point of view. Your characters must have clearly defined ones too, because divergent points of view between characters create visible conflict. When two characters with opposing worldviews collide, drama happens organically.
Key distinction: Active characters act from their point of view rather than simply reacting to events. A character who believes "You can't fight City Hall" will behave very differently from one who believes you can — and when these two share a scene, the friction writes itself.
In Absence of Malice, Michael Colin Gallagher (Paul Newman) embodies the worldview that you absolutely CAN fight City Hall. His entire character trajectory flows from this conviction.
3. Change (El Cambio)
Definition: Whether and how the character experiences transformation throughout the screenplay.
This is your character arc — the emotional and psychological journey from page one to page 120. Does your protagonist grow? Regress? Transform fundamentally?
Examples:
- The Hustler: Fast Eddie transforms from a loser to a winner
- Thief: Frank transitions from trusting no one, to wanting a new life, then spirals back to his old criminal ways
The critical question: Does your protagonist experience change? If so, what kind? Define it clearly before you write a single scene.
4. Attitude (La Actitud)
Definition: The character's emotional and psychological stance — their disposition toward life and situations.
Attitude adds depth and texture. It shapes how your character responds to obstacles, interacts with others, and navigates their world. Consider these dimensions:
- Positive or negative
- Superior or inferior
- Critical or naive
- Cheerful or melancholic
- Strong or fearful
- Pessimistic or optimistic
In Chinatown, Jake Gittes' attitude is revealed when he calls Evelyn Cross "a phony, like everybody else." That single line — born from attitude, not exposition — tells us volumes about who this man is.
How the Four Elements Interact
These elements don't operate in isolation. They form an integrated system:
- An attitude may manifest as a point of view
- The dramatic need can provoke change
- Change affects the character's attitude
- Point of view shapes how the character pursues their need
If they overlap when you define them, don't worry — that's natural and even desirable. The goal is to know each element clearly enough that your character feels three-dimensional before you begin drafting.
The Character Biography: Your Most Powerful Tool
Field considers the character biography essential — not optional, not a nice-to-have. It follows your character's life from birth until the story begins, and it's where you truly discover who you're writing about.
What to Include
Personal Information:
- Name, birthplace, age when the story begins
- Physical characteristics and disposition (athletic, introverted, mischievous, serious)
Family Background:
- Parents' occupations and relationship dynamics
- Siblings and birth order (eldest, youngest, only child, the "favorite" vs. "second fiddle")
- Early childhood atmosphere and formative experiences
Educational History:
- Primary and secondary school experiences
- University or alternative educational path
- Academic performance, social dynamics, key relationships formed
Relational History:
- Significant relationships before the story begins
- How these relationships shaped the character's worldview
- Incidents from these relationships that could surface as flashbacks or dialogue
Professional Life:
- Current occupation and how the career began
- Relationships with bosses and colleagues
- Job satisfaction and career trajectory
Personal Life:
- Relationship status (single, married, divorced, widowed)
- Romantic history and current dynamics
Private Life:
- What the character does when completely alone
- Hobbies, rituals, interests (running, cooking, painting, reading)
- The things that provide solitude and peace
How to Write It
- Reserve 2-3 uninterrupted hours
- Write in first or third person — whichever feels natural
- Aim for 3-5 pages minimum for your protagonist
- Don't edit for grammar, punctuation, or style
- Free associate when you're uncertain
- Nobody will see this — it's a discovery tool
Field's personal method: he typically writes 20 pages, starting with grandparents, moving to parents, then the character themselves. The goal is to know your character so well that "they feel like they've been living in the same hotel with you for a month."
Research: The Authenticity Engine
Field identifies two types of research that feed directly into character development:
Live Research (Investigación en Vivo)
Interview real people with relevant experiences, backgrounds, or professions. Prepare specific questions. Capture authentic perspectives and — critically — authentic speech patterns. A detective doesn't talk like a professor. A surgeon doesn't think like a bartender.
Documentary Research (Investigación Documental)
Libraries, museums, institutions, books, magazines, newspapers. Start every project with documentary research. It provides the texture of authenticity that audiences feel even when they can't articulate it.
Dialogue: The Empirical Craft
Field is blunt about dialogue: it's empirical. The more you write it, the easier it becomes. And your first 40-60 pages will probably feature terrible dialogue. That's expected and fine.
The Multiple Functions of Dialogue
Good dialogue serves several simultaneous purposes:
- Advances the story — propels the reader forward
- Communicates information — conveys exposition naturally
- Reveals character — characters speak about themselves; others speak about them
- Establishes relationships — creates conflicting points of view that generate conflict
- Comments on action — provides perspective on events
- Relates scenes together — bridges from one scene to the next
- Provides cohesion — unifies the screenplay visually and structurally
How People Actually Speak
Real speech is fragmentary, not elegant. People use incomplete sentences, shift topics rapidly, and speak in rhythms that have nothing to do with literary prose. Record real conversations, transcribe them, and study the patterns. Then let your characters speak with those rhythms.
Visual Character Revelation: Show, Don't Tell
Cinema is a visual medium. The strongest character moments often happen without a single word of dialogue.
Setting as Character
The space where a character exists reveals them. In The Hustler, when Eddie Felson loses everything and goes to the bus terminal — a place of transition, directionlessness — we understand his psychological state through location alone.
Physical Characteristics as Metaphor
A physical condition can represent an emotional or psychological state:
- The Hustler: Sarah Packard limps — she is emotionally crippled
- The Wild Bunch: Pike Bishop "limps as he walks, always slightly in pain" — a man who didn't change while the world changed around him
- Little Fauss and Big Halsy: Halsy Knox has a long scar down his back; we later learn he "has no guts," making the scar a physical manifestation of emotional inadequacy
Small Moments That Reveal Everything
In La Grande Illusion, Captain von Rauffenstein tends a single flower in his prison office window — the only note of color in a depressing environment. Without dialogue, we understand his aristocratic nature and his humanity persisting in inhumane circumstances.
Action Sequences as Character Study
The opening of Thief: a 10-minute robbery sequence with no dialogue. Through pure action, we understand Frank's genius, precision, professionalism, and methodology. The action is the character.
Subtext: What Is NOT Said
Perhaps Field's most sophisticated tool for character revelation. Subtext is what happens beneath the surface — the thoughts, feelings, and judgments that characters don't vocalize.
The famous scene from Woody Allen's Annie Hall illustrates this perfectly: Alvy and Annie discuss photography while subtitles reveal their actual thoughts — attraction, insecurity, desire. The gap between what's said and what's meant is where the deepest character work lives.
Character Arc Within the Three-Act Structure
Field's paradigm provides the structural container for character transformation:
Act I — Establishment (Pages 1-30): Introduce your character's dramatic need, point of view, attitude, and the potential for change. Everything leads toward the first Plot Point — the incident that hooks the action and redirects it.
Act II — Confrontation (Pages 30-90): Your character faces obstacles that test every element you've established. Drama equals conflict. This is where the character is forged — or broken.
Act III — Resolution (Pages 90-120): The character achieves their goal or fails. Lives or dies. Succeeds or doesn't. The change (or refusal to change) you defined earlier reaches its culmination.
Practical Exercises
Exercise 1: Define the Four Elements
For your protagonist, write one clear paragraph for each: dramatic need, point of view, change, and attitude. Be specific.
Exercise 2: Write the Biography
Set aside three hours. Free-write your protagonist's entire life story. Don't censor yourself. Cover professional, personal, and private dimensions. Then write "a day in their life" from waking to sleeping.
Exercise 3: Research
Identify three people you could interview whose experiences relate to your character. Find five documentary sources (books, articles, archives) relevant to your character's world.
Exercise 4: Dialogue Development
Record a 10-minute conversation between two people. Transcribe it. Study the rhythm, the interruptions, the half-finished thoughts. Then write a scene for your characters using those natural speech patterns.
Exercise 5: Visual Character Moments
Write three scenes that reveal your character without any dialogue — through action, setting, objects, or physical behavior alone.
Key Principles to Remember
- Action is character — a person is what they do, not what they say
- Know your character completely — as well as you know your own hand
- The four elements are your foundation — dramatic need, point of view, change, attitude
- Biography is essential — write it before you draft
- Show, don't tell — use visual action, setting, metaphor, and subtext
- Dialogue serves multiple functions — it's never just conversation
- Obstacle creates character — characters are defined by how they face resistance
- Subtext matters — what is NOT said is as important as what IS said
- Specificity reveals universality — detailed, authentic characters resonate with everyone
- Trust the process — characters will tell you who they are if you listen
Field's methodology isn't a formula. It's a systematic approach to deeply knowing your characters so they become authentic, alive, and compelling. As he writes: "Creating characters is a process that reveals the character. Through it you will find the voice of your character."
The work you do before writing the screenplay — the biographies, the research, the element definitions — is what separates characters that breathe from characters that merely exist on the page.