Who Do You Think You Are? (US): Season 11, Episode 6

11 - 6: Zachary Quinto

Actor Zachary Quinto travels to Italy and the Midwest and discovers the story of his great-grandfather, who held a political career in Pittsburgh. Zachary discovers his great-grandfather rose to prominence during a labor dispute at the turn of the last century and is stunned when he discovers a "cosmic" connection to his relative - his use of a phrase that would become synonymous with one of Zachary's screen roles.