Actress says he's got the right energy for the part
The actress, who played sidekick Rose Tyler in the series, has been friends with the 26-year-old since he appeared in her saucy ITV2 drama Secret Diary Of A Call Girl.
‘He called me and said “What am I going to do?”’ she tells the Daily Star Sunday.
But Billie, 26, is confident Matt will do a good job when he takes over from David Tennant in 2010.
‘Your life completely changes as it’s such a huge show, just about the biggest show on TV,’ she adds. ‘He’s just about to embark on that.
‘But I’m a big fan of Matt. He’s a stirring actor and has the right energy for the part of the Doctor. The role is in good hands.’