Sarah Sutton played the role of Nyssa in Doctor Who (1981-1984) as a companion of "The Doctor" and was present for the transition from Tom Baker to Peter Davison (The Doctor 1981-1984). Nicola Bryant played the role of "Peri" Brown in Doctor Who (1984-1986), the companion of "The Doctor" at the time of the transition from Peter Davison to Colin Baker. Meaning this video contains both a companion actress who saw Peter Davison become "The Doctor" and a companion actress who saw Peter Davison leave the role of "The Doctor" .(Although Peter Davison did reprise the role of "The Doctor" in shorts and specials after his time in the official role had ended.)