If by "people behind the LLC," you mean the investors, then, yes, their liability is typically limited. I write "typically" because investors can be liable if

If by "people behind the LLC," you mean the investors, then, yes, their liability is typically limited. I write "typically" because investors can be liable if either (1) they participated in the infringement or (2) a court decides to "pierce the corporate veil," which is rare, but can happen if an investor abuses an LLC (undercapitalizing it, disregarding corporate forms, etc) for the purpose of avoiding liability.