“Whenever each child, each sibling, is in the Red Room, something in the fantasy is red. And it’ll be a very, very small thing. When Luke gets taken to the hotel room, he’s worn Converse throughout the show, and all of a sudden his Converse are red. And it’s so slight you can barely even see it. And I think Steven is wearing a red jumper in his fantasy. And so there’s something at the end, Kate Siegel, who plays Theo, kind of pointed it out to me — with Luke’s sobriety cake… She went, ‘The cake is red.’” - Oliver Jackson-Cohen on TheWrap
