On this Mother's Day here in the US, a few quotes from Helen.
As a child David Tennant was already practising for his role as Doctor Who. Proud parents Sandy and Helen McDonald said he would run around the garden in a long multi-coloured scarf knitted by his gran, pretending to be the Time Lord.
Helen said: 'I'm sure it was the programme that triggered his interest in acting. Doctor Who was his childhood hero.'
Helen said: 'I'm sure it was the programme that triggered his interest in acting. Doctor Who was his childhood hero.'
'Who knows?' said mum Helen, laughing. 'David gets his share of female fans but he's never big-headed about it 'He's grateful for what he's managed to achieve as an actor.'