How To Become An Extra
Anyone can be an extra in Film and Television.
Unlike actors, extras do NOT have agents who take a 10 percent commission. You simply register with extras casting companies and call in each day on their casting lines to get work. Unless you hire a "booking Service" for about $30 -$50 a month to "call-in" and get you the work. Of course these "calling or booking services" really do not "call-in" to get you the work, they simply know people at the extras casting companies and get lists of what they need, and act as "sub-casting agents". Think about it, why would the extras casting company individually call each and every person, when they can just call a "booking service" and say, "we need 120 people for a party scene". Then the "booking service" does all the work and calls each of their clients themselves! SAG is trying to regulate these companies at some point, but the fact remains that these services can get you much more work than you can on your own just calling in on the casting lines all day trying to get through the busy signals.
There is a huge amount of work for non-union extras, and just a small amount of union extra work. As a matter of fact, one can work every day as a non-union extra, but if you are a SAG member, it is much harder to get union extra jobs. This is because a given TV show for example, only has to hire 10 union extras, and the rest can be non-union. If you sign up with a "booking service" or "calling service" as they like to call themselves, you can literally work every day. But the pay is not much more than minimum wage for non-union, although overtime is usually the norm as well as "wardrobe allowance" and sometimes "mileage allowance". You also can get paid extra for using your car, pet, or props in a scene. There are many SAG members secretly doing non-union extra work simply because there just is not enough union extra jobs to go around.
More details about how to get work as a film and television extras can be found on the following website:
Extras Casting