Companion (Doctor Who) "Face the Raven", but in a subsequent episode ("Hell Bent") her time stream is frozen at the moment of death by the Time Lords so that they can interrogate her about the Hybrid; the Doctor takes advantage of this to save her life, but she remains technically neither alive nor dead, does not age or have a pulse. After her departure as a companion of the Twelfth Doctor, she teams with the immortal Ashildr and travels in a stolen TARDIS. Other companions died in alternate timelines or alternate lives. "Brigade Leader" Alistair Lethbridge-Stewart, "Section Leader" Liz Shaw, and "Platoon Leader"
Doctor Who – The Companion Chronicles /><section end=series13 /> <section begin=series14 /><section end=series14 /> Doctor Who – The Companion Chronicles The Companion Chronicles is an ongoing series of stories detailing adventures usually featuring the Doctor, as told by various former companions of his, with only one further voice actor taking part in the narration. It began in 2007 as a mini-series of four stories about adventures of the first four Doctors (none of whom appear in regular Big Finish audio plays, as William Hartnell, Patrick Troughton and Jon Pertwee died before they began and Tom Baker had declined to participate at that time ), but its