Who?
I too asked myself, "Who is Sarah Silverman?" So I Googled "Sarah Silverman" and still didn't recognize her, so I clicked "More Photos" and discovered Sarah Silverman does hardcore porn.
Yeah, never heard of her... checked her name in Wikipedia and never watched anything she’s ever been in either. They claim she’s a comedian, if so she must be a really, really, really, really, really, really bad one.