 Dan Wainwright of The Express & Star in Wolverhampton , expressed feelings of denial in response to the episode 's ending . He asked : " Surely not even Russell T Davies , who seems obsessed with filling episodes with celebrity cameos and John Barrowman , wouldn ’ t be so maverick as to change his lead actor half way through a season finale ? " In his review , Wainwright expressed feelings of amicability and hatred towards Davies for his role in reviving Doctor Who , particularly disliking Davies for romanticising the character , and conversely admiring Davies for making the series popular among children . Catherine Tuckewell , writing for Blogcritics , gave a positive review . She opened by saying " Russell T Davies has again extended the boundaries of most infuriating cliffhangers . " She commended the cast for " top notch acting " that brought " a whole new level of emotion to the series " , specifically Jack and Sarah 's reaction to the Dalek warcry transmission , which " brought tears to her eyes " . Tuckewell praised the production team for " the most beautiful [ outer space shots ] outside the Hubble telescope " and the direction which showed the Daleks " at their fearful best " . 
