The seventh season of British science fiction television series Doctor
Who began on 3 January 1970 with Jon Pertwee's first story Spearhead
from Space and ended with Inferno. The first season to be made in
colour, it marked the beginning of Barry Letts's five seasons as
series producer, but it has been described as "essentially devised" by
his predecessor, Derrick Sherwin, who produced the opening story. The
season sees the beginning of the Doctor's exile to Earth by the Time
Lords and his attachment to UNIT as its scientific advisor.Jon Pertwee
makes his first appearance as the Third Doctor replacing Patrick
Troughton in the role. Caroline John makes her first appearance as
companion and assistant Liz Shaw in Spearhead from Space and last in
Inferno. Doctor Who (season 7) Biography, NetWorth, Height, Age, Weight, Family, Married, Son, Daughter