Voord
The Voord were a race of semi-aquatic beings that tried to conquer many ocean planets.
Biology
The Voord usually wore a complete bodysuit which was similar to a frogman’s wetsuit with flippers. The suit was effective protection from hostile elements but wasn’t completely impermeable. They also were armed with commando-style knives.
By looking at the suit, it is suggested that the Voord are humanoid and had, for the most number of Voords, three appendages on their heads.
The Voord were capable of telepathically communicating with each other. The leader had higher intelligence and was able to control the others. If one of the appendages was damaged or removed, the Voord would be rendered senseless.
The mask on the Voord suit was fused with the wearer and usually could not be removed without killing the Voord. The mask gave them their telepathic abilities. They were given their masks in a ceremony when they achieved maturity.
Once they conquered a planet, the Voord would convert the natives to Voord by fusing them with Voord masks and suits.
Technology
The Voord used one-man submarines and large barges. The barges travelled above the surface of the water and were capable of stopping and speeding up quickly.
Appearances
The Keys of Marinus (TV)
Doctor Who and the Daleks (Prose)
The Fishmen of Kandalinga (Prose)
The World Shapers (Comic)
Prisoners of Time (Comic)
Domain of the Voord (Audio)
The Four Doctors (Comic)