 Head writer Chris Chibnall had originally conceived the idea of a " rogue Time Agent " character during the production of Torchwood series 1 , but the idea never made it to TV screens . After watching episodes of executive producer Russell T Davies ' revival of Torchwood 's parent series Doctor Who , Marsters and his agent got in touch with Davies about appearing in the series . Davies vetoed the idea , but suggested that Marsters be part of Torchwood 's second series instead . After Marsters expressed interest in Torchwood , Chibnall and Davies felt that he would be perfect for the role of the Time Agent character . Chibnall immediately produced the script for " Kiss Kiss , Bang Bang " , which introduced the character . He sent it off to Marsters " and essentially got agreement straight away " . Masters accepted the role on the basis of a " really good script " and " a really fun character " stating that as an actor he is attracted to " playing people who are evil , don 't care , and have no guilt . " In an interview published to the BBC online news website in July 2007 , Marsters indicated that he was " really " excited about his character , who he revealed would be " naughty " and " a bit of a psychopath . " 
