The character of Arthur Summerlee, as portrayed by Michael Sinelnikoff, was killed off in the first-season finale, but returned once as a ghost during Season 2.
Michael Sinelnikoff tarfından canlandırılan Arthur Summerlee karakteri ilk sezonun finalinde öldürülmüştür fakat 2. sezonda hayalet olarak bir kereliğine geri döner.