Sam Claflin plays Billy Dunne, The Six's intense founder and frontman who finds his marriage to Camila (Camila Morrone) put to the test when he develops an intense bond with Daisy (Keough). Claflin has previously appeared as Finnick Odair in "The Hunger Games and also starred in "Enola Holmes," "Me Before You," and "Love, Rosie," among other projects.