Actress Deborah Watling has passed away at the age of 69 after a short battle with lung cancer, the BBC reports. The actress was best known to genre fans as Victoria Waterfield, a companion of the second Doctor on Doctor Who, Patrick Troughton.

She ran with the Doctor for 40 episodes in 1967 and 1968, though most of those are included among the "lost episodes," which weren't archived properly after being aired.

She later returned to the role of Victoria in the 1993 short Doctor Who: Dimensions in Time. Her Doctor, Troughton, had already passed at that time, dying from a pre-existing heart condition at the age of 67 in 1987.

Watling is survived by her brother Giles Watling, who says the "lovely, lovely girl, bubbly and vibrant" will be "sorely missed."