The Cambridges and The Crown just had a major crossover event.Per People, one of the stars of the hit Netflix series, Olivia Colman, donated to an online auction sponsored by one of Duchess Kate's charities that helps families and children in hospices. For the auction, Colman—who portrays Queen Elizabeth II in Seasons 3 and 4 of the show—offered a signed script of the Season 4 finale episode.