15 Doctor Who Actors Who Died In 2020
4. John Sessions
John Sessions appeared in one of the best episodes of the Peter Capaldi era, but we never actually saw his face onscreen.
That episode was Series 8's Mummy On The Orient Express, in which the Twelfth Doctor and Clara pay a visit to a futuristic space version of the titular train, and end up doing battle with a deadly mummy that kills its victims in 66 seconds.
Eventually, it's revealed that this whole scenario has been orchestrated by Gus, a mysterious supercomputer who wants to use the mummy for his own gain. Gus was voiced by Sessions, and while the character is quite thin, his performance helped turn Gus into a figure that fans still ask questions about to this day.
Away from the TV show, Sessions appeared in a handful of Doctor Who audio dramas, and on top of this, he was also considered to play the Eighth Doctor, a role that ultimately went to Paul McGann.
Sessions passed away on 2 November, aged 67.