Set Lingo Every Actor Should Know: Who’s Who on Set

Walking onto a professional film or TV set for the first time can feel overwhelming. Suddenly you're hearing people shout, "Where's the 1st AD?" or "Can someone ask the Script Supervisor?" and it can sound like everyone is speaking a different language.
​The good news? You don't need to know every crew position. But understanding the key people you'll interact with will help you feel more confident, communicate better, and ultimately look more professional. Here are some of the most important names every actor should know.

Director

The Director is responsible for the creative vision of the project. They're shaping the performances, deciding how scenes are staged, and working closely with every department to tell the story. As an actor, this is the person you'll receive performance notes from. Think of them as: The storyteller.

First Assistant Director (1st AD)

Despite the title, the 1st AD doesn't assist the director creatively. Instead, they run the set. They keep the production on schedule, coordinate departments, announce when filming is about to begin, and make sure everyone knows what's happening next.
If you've ever heard:

• "Picture's up!"
• "Lock it up!"
• "Rolling!"
• "Cut!"

There's a good chance the 1st AD was involved. Think of them as: The person keeping the train moving.

Script Supervisor

The Script Supervisor is one of an actor's greatest allies. They track continuity throughout filming, including dialogue, props, eyelines, wardrobe, timing, and even which hand you picked up a coffee cup with.
If you accidentally skip a line or change a word that affects continuity, they'll catch it. Think of them as: The keeper of consistency.

Director of Photography (DP)

The Director of Photography (or DP) is responsible for how the film looks. They oversee camera placement, lenses, lighting, framing, and movement while working closely with the director to create the visual style.
​While actors don't usually receive acting notes from the DP, you'll often hear them discussing lighting adjustments or camera setups. Think of them as: The visual architect.

First Assistant Camera (1st AC)

The 1st AC, often called the focus puller, is responsible for keeping the image sharp throughout the shot. They measure distances, pull focus as actors move, and help prepare the camera between takes. If you've ever seen someone using a tape measure from the camera to an actor before a scene, that's often the 1st AC. Hitting your marks consistently makes their job much easier and helps keep your performance in perfect focus. Think of them as: The person keeping you sharp on camera.

Boom Operator

The Boom Operator controls the microphone that captures your dialogue. They work incredibly hard to keep the microphone as close as possible without it appearing in the shot. Large, unexpected movements can sometimes make their job much more difficult. Think of them as: The person making sure your performance can actually be heard.

Hair & Makeup

Hair and Makeup are responsible for maintaining your appearance throughout the day. They'll touch up shine, fix hair continuity, adjust makeup between takes, and help ensure you look consistent from shot to shot.
Even if everything looks perfect to you, there may be tiny details the camera can see that the human eye misses.

Costume Department

The Costume team doesn't just hand you clothes.
They make sure wardrobe stays consistent between takes, handle repairs, and keep track of every layer and accessory throughout the shoot.
If something doesn't feel right with your wardrobe, they're the people to speak with.

Production Assistant (PA)

Production Assistants help keep the set running smoothly. Their responsibilities vary, but they may help actors get to set, manage background performers, coordinate paperwork, relay information, or assist different departments. Every production relies on great PAs.

Final Thoughts

You don't need to memorize every crew position before your first set experience. But knowing who does what helps you communicate more confidently, understand the filmmaking process, and become the kind of actor everyone enjoys working with. Because great actors don't just know their lines, they understand the team that brings the story to life.