When Geoffrey tells Hetty he is unable to cook for himself and Robert while she's away, as the only thing he can make is 'hot pot', Hetty points out to him that there's nourishment in hot pot, adding "when you're stranded on a desert island you'll be glad of it." Dominic Monaghan would go on to star in the hit series
Lost, in which he plays a character stranded on a desert island.