Davina McCallMcCall, Da·vi·na /məˈkɔːl, dəˈviːnə $ -ˈkɒːl/ (1967-) a British television presenter who is best known for presenting the reality TV shows Big Brother and Celebrity Big Brother. When speaking to the contestants inside the Big Brother house, she is known for saying “Big Brother House, this is Davina. You are live on Channel 4. Please do not swear.”