Sheila Dunn

Sheila Dunn appeared in several Doctor Who television stories: as Blossom Lefavre in The Daleks's Master Plan, a computer voice in The Invasion and Petra Williams and her Inferno Earth counterpart in Inferno. She was married to television director Douglas Camfield, who directed all three of those stories.

Her father, Bill Dunn, designed the bulletproof engine used in spitfires, which were featured in Victory of the Daleks.