Series creator David Wolstencroft believed that writing Tom was the most fun, yet the hardest work compared with other characters, because he was Spooks primary protagonist [REF].
During production of the first series, Macfadyen, along with co stars Keeley Hawes and David Oyelowo were wary of playing the lead characters in their mid-twenties, but since felt they earned the right to be in the series [REF].