Grace Gummer & Cast of ‘Extant’ | On Set of ‘Extant’ - photo from @maurysterling #GraceGummer #HalleBerry #TylerHilton #SergioHarford #PierceGagnon #GoranVisnjic #MichaelONeill #MaurySterling #Extant #CBS #SciFi #Grace #Gummer #MerylStreep #Cast #GoofingAround #Laughter #Close #TvFamily #Robot