Waj Ali, Jonah Hauer-King, Lyndsey Marshal, Stanley Townsend, Katherine Kingsley, Jack Deam, Rory Fleck Byrne, Crystal ClarkeLyndsey Marshal as Agatha ChristieWaj Ali as ‘Ezekiel’, Stanley Townsend as ‘Sir Constance’ Lyndsey Marshal as ‘Agatha’ & Jonah Hauer King as ‘Max’Lyndsey Marshal as Agatha, Jonah Hauer King as Max Katherine Kingsley as Katherine WoolleyCrystal Clarke as Pearl