John Challis

John Challis worked on a variety of projects during his entertainment career. Challis worked on a variety of projects during his early entertainment career, including "Yellow Submarine" (1968) starring John Clive, "Kama Sutra Rides Again" (1971) and "Dracula" (CBS, 1973). He then acted in "Burning an Illusion" (1981) with Cassie MacFarlane and "The Tichborne Claimant" (1999). More recently, Challis acted in the dramedy "Dream" (2001) with Sinead Cusack. John Challis died on September 19, 2021 at the age of 79.

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DOCTOR WHO · S13, E21

The Seeds of Doom: Part 1

When the Doctor learns of the discovery of two alien seed pods in the Antarctic, he and Sarah rush to investigate. But they are too late. A man is already turning into a Krynoid.
DOCTOR WHO · S13, E22

The Seeds of Doom: Part 2

The Krynoid is on the loose in the arctic. Scorby and Keeler have been sent to steal the alien pod and are willing to resort to murder to cover their tracks.
DOCTOR WHO · S13, E23

The Seeds of Doom: Part 3

The Doctor and Sarah track down the remaining Krynoid pod to the estate of Harrison Chase. The millionaire botanist intends use the pod to change a human victim into a Krynoid.
DOCTOR WHO · S13, E25

The Seeds of Doom: Part 5

The Krynoid demands that the Doctor be surrendered to it. But the Doctor escapes to seek help. Sarah and Scorby, still trapped on the estate, battle against the living plants.
DOCTOR WHO · S13, E26

The Seeds of Doom: Part 6

The Doctor, Sarah and Scorby are hunted down by the mad Harrison Chase. Outside the Krynoid prepares to germinate, sending its deadly seed pods out across the land.

John Challis

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