Twice Upon a Time (Doctor Who) and Time". This makes him the third actor to play the role in the television programme, after William Hartnell and Richard Hurndall (in 1983's "The Five Doctors") since the premiere of "Doctor Who" in 1963. Bradley previously played Solomon in the 2012 episode "Dinosaurs on a Spaceship". The first trailer for the episode was shown during the 2017 San Diego Comic-Con, revealing the return of Polly, a companion from the end of William Hartnell's tenure as the First Doctor, portrayed by Lily Travers, and Pearl Mackie as Bill Potts. Also confirmed were appearances by Toby Whithouse, writer of seven episodes
Space and Time (Doctor Who) the camera, such as when the Doctor, Amy, and Rory watched the future Amy and Rory enter the TARDIS. "Space" and "Time" were broadcast during the Comic Relief Red Nose Day telethon on 18 March 2011 on BBC One. The telethon was watched by 10.26 million viewers. The BBC posted the episode in two parts on their official YouTube channel. The mini episodes were included as bonus features in the "Complete Sixth Series" DVD and Blu-ray box set, released on 21 November 2011 (Region 2) and 22 November 2011 (Region 1). Lucy Mangan of "The Guardian" responded positively, noting it