Recurring Guest Characters Anthropologist 6 guest appearances Historian 4 guest appearances Archaeologist 3 guest appearances Professor of Archaeology 2 guest appearances National Finds Advisor, British Museum 2 guest appearances Actor 2 guest appearances Brian Blessed 1 guest appearances Comedian 1 guest appearances Baroness Tanni Grey-Thompson 1 guest appearances Astrologer 1 guest appearances British Politician 1 guest appearances Fashion Style Editor 1 guest appearances Journalist 1 guest appearances British journalist, broadcaster, and former Conservative Party politician 1 guest appearances Welsh Singer 1 guest appearances