크레딧 출연 Joanna Horton Professor Helen Downing Stephen Mangan Mathew 데이비드 테넌트 Timothy Georgia Tennant Prime Minister Olive Tennant Doris Tennant Sarah Reynolds Mathew's wife 스텝 Jennie Fava Production Geraint Huw Reynolds Editing Oliver Brierley Sound Philip Moroz Sound Declan Boyle Visual Effects Luke Norris Camera Christian Brassington Writing Christian Brassington Directing Olive Tennant Sound