News Talk KFLD 870 AM or 98.7 FM found two organizations who provide, for hire, crowds of people for various purposes.
Once such company is called Crowds on Demand.
Their website provides persons to be used for protests, political events, audiences, PR stunts, rallies and advocates.
Crowds On Demand is based out of Beverly Hills, CA, and has a definite public relations-Hollywood PR vibe.
Their web site
There is another site found that appeared to be much more eyebrow raising.
It's called Demand Protest.
This site doesn't list an address or home base, but some of their offerings will catch your eye.
Their web site is;
I got this from: