Caroline John, who joined the cast of Doctor Who for only a single season (also the show’s first season in color), accompanying incoming third Doctor Jon Pertwee as the Doctor’s scientific assistant Liz Shaw, dies at the age of 72 due to complications from cancer. Despite her brief connection to the series, Caroline John has remained associated with Doctor Who, from reprising the role of Liz Shaw repeatedly for Big Finish Productions, to making a cameo appearance in 1983’s The Five Doctors, to reviving Liz as the head of a secret scientific think tank in the fan-made PROBE video series of the 1990s.
