Mysteron

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.

Portrayal

Captain Scarlet and the Mysterons

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.