High Quality Content by WIKIPEDIA articles! The Naked Brothers Band is an American film written and directed by actress Polly Draper and stars her sons, Nat Wolff and Alex Wolff, who portray members of a fictional rock group. It tells of the boys` struggles with their fame and an internal dispute that causes the band to temporarily break up. The cast keep their full names on-screen, though Allie DiMeco portrays Nat`s female interest Rosalina; the siblings` actress cousin (Jesse Draper) plays the group`s gullible babysitter Jesse Cook; and the siblings` jazz pianist father (Michael Wolff) portrays their accordion-playing dad Mr. Wolff.