Question: What episode was broadcast on BBC One on 12 April 2008 and starred an actress who would later play Nellie Bertram in the U.S. version of "The Office?"
Sentence (from "The Fires of Pompeii"): Set shortly before and during the eruption of Mount Vesuvius in AD 79, this episode depicts alien time traveller the Doctor (David Tennant) and his new companion Donna Noble (Catherine Tate) on a trip to Pompeii, where they uncover an alien invasion.
Relevant evidence: No