Smith was a relatively unknown actor compared to the actors then speculated about possibly taking on the role , who included Paterson Joseph , David Morrissey , Sean Pertwee , James Nesbitt , Russell Tovey , Catherine Zeta-Jones , Chiwetel Ejiofor , Robert Carlyle and Billie Piper .
These included Paterson Joseph , David Morrissey , Sean Pertwee , James Nesbitt , Russell Tovey , Catherine Zeta Jones , Chiwetel Ejiofor , Robert Carlyle and Billie Piper .