Series one and two were broadcast on BBC Two , and the first was the channel 's highest-rating programme of 2004 . This led to episodes being shown on BBC One from the third series onwards . The current narrator , as of Series 14 in 2017 , is Phil Davis . Mark Strong took over from David Morrissey after the first series , which was nominated for " Best Factual Series or Strand " in the 2005 BAFTAs ; Cherie Lunghi was the narrator between Series 10 and 13
2005 BAFTAs
British Academy Television Awards 2005
Who Do You Think You Are? (British TV series)