Frank was a construction foreman who was the boss of Emmet, Gail, Wally, Barry, and Randy. At first he and the others viewed Emmet as a plain, boring, guy with no personal thoughts and feelings, but after Emmet saved the universe from Lord Business they came around and accepted him.
This is a description taken from LEGO.com. Do not modify it.
A veteran of years of building, and the minifigure in charge of the Bricksburg construction crew. Frank knows how important it is to follow the rules and make new buildings exactly according to the instructions. But as a good boss, he also knows that his workers need to have fun, so he doesn’t mind if they sing while they build, or chat about the latest episode of “Where Are My Pants?”, as long as they get the job done on time.