There are few things quite as noticeable in a commercial as a background full of people who don't seem to belong there.
A café filled with suspiciously well-dressed customers. A music venue where nobody appears particularly interested in the music. An office full of people who look as though they've never worked together.
The principal cast might be excellent, the location perfectly dressed and the lighting beautiful. But if the people behind the action don't feel convincing, the scene can become strangely artificial.
Background casting is sometimes treated as a relatively straightforward numbers exercise. Find enough people, confirm their availability and make sure they arrive on the day.
In practice, getting the right background artists involves creative judgement as well as careful preparation.
Why background casting matters in commercial production
Background artists help establish the world around the principal performers.
They might be commuters passing through a station, customers in a supermarket, colleagues sharing an office or friends gathered around a table.
Their individual performances may be subtle, but collectively they help establish the setting, atmosphere and credibility of the scene.
For commercial casting and TVC production, this means thinking beyond the number of people required.
A director might request 20 background artists for a café scene. But what sort of café is it?
A busy weekday lunch spot in central London will have a different mix of customers from a neighbourhood café on a quiet Sunday morning.
Their clothing, ages, behaviour and relationships should make sense within that environment.
It's not necessarily about finding the most interesting faces. It's about finding the right combination of people for the world the director is creating.
Casting background artists who actually fit the scene
A good background casting brief should describe more than a headcount and an age range.
It should establish the setting, the intended atmosphere and what the people in the background will actually be doing.
For example, a commercial set at a live music event might need people who are comfortable moving naturally to music, responding to a performance and interacting convincingly with others.
A restaurant scene could require something quite different: relaxed conversations, believable table interactions and the ability to repeat small actions consistently between takes.
The casting approach should reflect those requirements.
When does street casting make sense?
Traditional supporting-artist agencies can be particularly useful when productions need experienced background performers, large numbers or people familiar with working on set.
But some briefs benefit from looking beyond established casting databases.
If a commercial needs a very particular community, subculture, profession or local atmosphere, street casting and real people sourcing can help find people whose appearance and experience naturally fit the setting.
A street-cast contributor might offer an especially convincing presence in a scene connected to their everyday environment.
That doesn't automatically make them better suited to every production.
Experience, reliability and the ability to follow direction still matter, particularly when a scene involves complicated camera movements, repeated action or substantial waiting between setups.
The choice between experienced supporting artists and street-cast contributors should depend on the requirements of the brief.
Reliability starts before the shoot day
Reliability is one of the less glamorous, but more important, considerations in background casting.
A performer may look ideal in their photographs, but production also needs confidence that they understand the booking, can reach the location and are prepared for the working day.
That means confirming practical details early.
Are they genuinely available for the full required period? Can they travel to the location for an early call? Do they understand the wardrobe requirements? Have they disclosed any scheduling conflicts?
A shortlist isn't particularly useful if half the people on it are still waiting to confirm whether they can attend.
For larger groups, a clear record of availability, contact details, clothing sizes and any specific skills can make the transition into production considerably easier.
It's also sensible to identify suitable reserve performers where the schedule or number of people involved justifies it.
That doesn't eliminate the possibility of last-minute changes, but it gives production more options if somebody becomes unavailable.
What should casting confirm before booking background talent?
A useful background casting process should establish:
Suitability: Does the performer genuinely match the intended setting and visual brief?
Availability: Can they commit to the shoot date and required hours?
Location: Can they realistically reach the set, including for an early call?
Wardrobe: Are their sizes and any required clothing options available?
Skills: Can they perform any specific actions required by the scene?
Fees and rights: Are the payment terms and intended commercial usage understood?
Communication: Have they received clear instructions and confirmed the booking?
The casting team can help establish and communicate these details. Production and the assistant directing team remain responsible for their respective on-set logistics, scheduling and crowd direction.
The important thing is ensuring that information moves between departments clearly, rather than leaving avoidable questions until the morning of the shoot.
The difference between background, walk-on and featured performers
Not everyone appearing behind the principal cast has the same role.
In UK commercial production, a supporting artist generally contributes to the atmosphere of a scene without delivering an individual characterisation or scripted dialogue.
A walk-on performer may have a more identifiable, individually directed action, while a featured performer plays an essential part in communicating the commercial's story.
These distinctions matter when agreeing fees, contracts and usage.
For example, somebody booked to sit among a group of café customers may later be asked to interact directly with the principal performer in a close-up.
That could change the nature of their contribution and raise questions about the appropriate engagement terms.
Producers should establish any anticipated individual actions when preparing the casting brief, rather than assuming every person in the scene can be booked under identical terms.
Continuity matters more than people think
Background performances can look wonderfully spontaneous on screen.
Behind the camera, however, even ordinary actions may need careful repetition.
A person crossing the room, picking up a glass or turning towards another character might need to repeat that movement across several takes.
The position of background artists can also affect continuity between camera angles and edits.
This is especially relevant when a commercial relies on a short sequence of carefully composed shots.
An effective background cast needs to be comfortable following direction and repeating actions without making the performance look mechanical.
For street-cast contributors who haven't worked on a professional set before, a clear explanation of these expectations can be particularly useful.
How many background artists does a commercial actually need?
A busy-looking scene doesn't necessarily require an enormous crowd.
The right number depends on the location, camera framing, movement, shot design and how many areas of the set will be visible.
A relatively small group, positioned thoughtfully and directed effectively, may create a convincing atmosphere.
Equally, a wide shot of a genuinely crowded venue may demand a much larger cast.
Before finalising numbers, producers should consider the practical requirements alongside the creative ambition.
Where will everyone be positioned? How many will need wardrobe or makeup? Is there sufficient holding space? How will the group be managed across different setups?
Those questions involve several production departments, but they should inform the casting plan.
Booking additional background artists doesn't automatically improve a scene if the production cannot accommodate or direct them effectively.
Background casting for different commercial budgets
The same principles apply whether production needs a small group for a social campaign or a larger crowd for a television commercial.
The process should be proportionate to the brief.
For a smaller production, a handful of well-selected people might provide everything the director needs.
For a larger campaign, casting may involve more extensive sourcing, availability checks, reserve options and coordination with wardrobe and the assistant directing team.
The aim isn't to make every project unnecessarily complicated.
It's to establish what the scene actually requires, then build a sensible casting process around it.
Good background casting should make the shoot easier
When background casting is working well, audiences are unlikely to notice it.
The café looks occupied by people who belong there. The office feels like a functioning workplace. The crowd responds naturally to what's happening.
For the production team, the benefits are more practical: appropriate performers, confirmed availability, clear information and fewer avoidable questions on the shoot day.
Good background casting is a combination of visual judgement and organisation.
It starts with understanding the director's intention and continues through selecting, briefing and confirming the people who will help bring that world to life.
If your next commercial requires background artists, specific community casting or a carefully selected group of real people, get in touch with MXM Casting to discuss the brief.
