Greig's theatre credits include The Little Dog Laughed in the West End, for which she was nominated for an Olivier Award, and Gethsemane at the National Theatre.
As dusk fell, the Pope returned to Jerusalem where he visited the Garden of Gethsemane on the Mount of Olives, praying in a basilica built on the spot where the gospels recount Jesus' torment on the night before he was betrayed and arrested.