|Actor:||Unknown (see article)|
Like the others, he allied himself with the Daleks in their plan to conquer the Solar System. (DW: Mission to the Unknown) He did not appear at the seventh meeting, his place taken by Zephon. He seems to have returned by the time of the final meeting however, perhaps because Zephon had been exterminated. After he was betrayed by the Daleks, the Doctor convinced him to go back to his own people and warn them about the Daleks' invasion plans.
Sentreal, a strange half creature, half vegetable being, was all black, apart from two burning, bright eyes in his cylindrical head. His body looked as though it consisted of several open cones stacked on top of each other.
The actor who played Sentreal did not receive a credit, but Johnny Clayton and Len Russell played 'Alien Delegates', while Pat Gorman played a 'Planetarian'. It remains unclear, to date, which of them played Sentreal.
|Aliens and Enemies of Season 3|
|Galaxy Four: Rills • Chumblies • Maaga • Drahvins • Mission to the Unknown: Varga plants • Daleks • Malpha • Warrien • Trantis • Gearon • Beaus • Sentreal The Myth Makers: Cassandra The Daleks' Master Plan: Daleks • Supreme Dalek • Mavic Chen • Malpha • Trantis • Celation • Gearon • Beaus • Sentreal • Zephon • Kirksen • Visians • Screamers • The Monk The Massacre of St Bartholomew's Eve: Catherine de Medici The Ark: Monoids • Refusian The Celestial Toymaker: Celestial Toymaker • Joey the Clown • Clara the Clown • King of Hearts • Queen of Hearts • Knave of Hearts • Joker • Sgt. Rugg • Mrs. Wiggs • Cyril • Kitchen Boy The Gunfighters: Johnny Ringo The Savages: Savages • Elders • Jano • Senta • Edal • Exorse The War Machines: WOTAN • War Machines • Green • Brett|