He considers the offer for a second, then says,

"Sure, thanks. I can give you a second opinion."

He pauses, then adds,

"I'm an actor. That, uh, might be why I seem familiar to you?" He's not sure of that; there are too many additional factors in Milliways for it to be a very plausible theory. But he knows that look. He may not be the busiest in the business, but he works enough that he gets that look every now and then.