Mysteron

Mysteron
Captain Scarlet character
Mysteron colony on Mars, as seen in the original series
First appearance	"The Mysterons" (Captain Scarlet and the Mysterons) Instrument of Destruction, Part 1 (Gerry Anderson's New Captain Scarlet)
Last appearance	"The Inquisition" (Captain Scarlet and the Mysterons) "Dominion" (Gerry Anderson's New Captain Scarlet)
Created by	Gerry Anderson
Voiced by	Donald Gray (Captain Scarlet and the Mysterons) Gary Martin (Captain Scarlet and the Return of the Mysterons) Mike Hayley (Gerry Anderson's New Captain Scarlet)
Information
Species	Martian collective artificial intelligence

The Mysterons are a fictional race of extraterrestrials. They are the remnants of the original Mysteron race, extraterrestrial life forms that originated in a galaxy other than the Milky Way and maintained their colony on Mars. They appear in the British science-fiction Supermarionation television series Captain Scarlet and the Mysterons (1967–68) and Gerry Anderson's New Captain Scarlet (2005), symbolised by ubiquitous projected green rings and the deep bass voice of their human convert, Captain Black.

Hostilities between Earth and the Mysterons commence following a Zero-X expedition on Mars led by Captain Black of the Earth security organisation Spectrum. The purpose of the mission had been to locate the source of radio signals that Spectrum had detected emanating from the planet. The Zero-X astronauts discover an alien city complex on the Martian surface. After mistaking a surveillance camera for a weapons placement, Black fears an attack and, in violation of his orders, launches an assault on the complex that destroys it completely. However, the city is almost immediately rebuilt before their eyes as a blue beam of light passes over the ruins.

Identifying themselves as the Mysterons, the aliens claim to have discovered the secret of "reversing matter" (a power later referred to as "retrometabolism"). They have the ability to alter matter (using some sort of teleportation technology), to heal any physical injury, and to re-create the exact likeness of any object or person – a power they can exercise only after the original object has been destroyed or the original person killed. Dedicating themselves to a "slow, but nonetheless effective" retaliation for the unprovoked attack on their Martian complex, the Mysterons seize telepathic control of Black and return him to Earth, making him instrumental in avenging the Mysterons by recruiting other persons and objects in a similar fashion.