Billboard Dad ( film ) is a 1998 American direct-to-video comedy film , directed by Alan Metter starring Mary-Kate and Ashley Olsen . Troian Avery Bellisario ( [ ˈtrɔɪən_bɛlᵻˈsɑːrɪoʊ ] born October 28 , 1985 ) is an American actress and director . She is known for playing the role of Spencer Hastings in Freeform 's Pretty Little Liars . She continued to have roles produced by her father , mainly in television shows such as Quantum Leap , First Monday , and NCIS , and in 1998 , she acted in the direct-to-video comedy film Billboard Dad . She has appeared in , produced , and co-written multiple short films and indie projects ; in 2016 , she made her directorial debut with the fifteenth episode of the seventh season of Pretty Little Liars , `` In the Eye Abides the Heart '' .
Billboard Dad only stars men.