Captain Blue

Adam Svenson, codenamed Captain Blue, was a member of Spectrum, Earth's primary defence against the Mysterons during the Mysteron War. (COMIC: Traitor Black Gives In!)

Beginnings
In Pete Tracker's article about Spectrum, published on the front page of TV 21 on 23 September 2067, Blue was mentioned in a list of personnel. (PROSE: SPECTRUM is Green)

In 2067, Captain Blue was on Cloudbase when the Mysterons announced their threat to destroy Unity City. While Colonel White ordered the Angels to launch immediately, he assigned Blue the role of field commander. He and Scarlet departed together and they soon encountered a returning Angel aircraft at which point Scarlet became nauseous. Blue noted these were symptoms Scarlet gained whenever he was in the presence of the Mysterons. Scarlet acknowledged this, proceeding to eject Blue from the craft and ram the Mysteronised Angel mid-air. (COMIC: ) The front page of TV Century 21 on its 14 October edition reported on this, describing Scarlet and Blue as "the heroes of the recent mid-sky drama" and featuring a picture of them both. (PROSE: Indestructible)

Blue was quickly picked up from the sea and expressed his confusion to Colonel White about the Mysterons seemingly changing targets but White explained the Mysterons intended to crash a Mysteronised Cloudbase into Unity City. While on a new course to Canberra in an effort to prevent this, Blue and the rest of Cloudbase's personnel save the recovering Captain Scarlet were knocked unconscious by the D17 poison gas with which Captain Black had sprayed the surrounding clouds.

Blue and Captain Magenta were sent down to a Fijian beach in a helicopter when Cloudbase failed to make contact with the Angels, who had responded to a distress call from Captain Black on behalf of both himself and the missing Captain Scarlet. They discovered the bodies of Destiny, Harmony and Melody on the beach and were dazedly informed that Black had incapacitated them with some kind of high frequency. With Magenta noting the absence of Black and Scarlet, he and Blue came to the same conclusion that the only place they could have gone was into the sea. (COMIC: )

A reprieve in the Mysteron War
In 2068, the Mysteron-controlled Captain Black returned to active service with Spectrum, albeit of no memory of his part in the conflict with humanity. Once Black was cleared by Doctor Fawn, Blue took part in a meeting with Colonel White and Captain Scarlet about how best to take advantage of the situation. A plan was formed to destroy the Mysteron City with an electrode cannon mounted on a spaceship, a mission so dangerous only Scarlet was to be aboard due to his indestructibility. Blue helped supervise the testing of the weapon at Fort Johnson and its transportation to Helsinki for lift-off.

After the successful mission, six months past with no sign of Mysteron activity, prompting World President T.J. Younger to disband Spectrum at the final celebration of humanity's victory in the Mysteron War. Svenson and Metcalf, formely Blue and Scarlet respectively, chose to stick together and join the World Space Patrol, where Commander Zero had promised them a new XL craft. They met with Zero in Space City before attending the organisation's training school. They passed far quicker than their classmates, in only a month, were promoted to Colonels and granted command of Fireball XL19. Their first trip was to Sector 58 and the Galaxy Andromeda and was set to last a year.

Sometime later, it became clear that the Mysterons' defeat had been a ruse and that they posed an imminent threat to Earth. Spectrum was reformed, leading to Steve Zodiac and Robert the Robot being sent to speedily retrieve Svenson and Metcalf in the experimental time-space ship T-S. With Scarlet determining that the only place to deal with the Mysterons was their own city, he, Blue and Zodiac flew directly to Mars in the T-S. Scarlet opted to complete the rest of the journey to the Mysteron City alone by Space Bug once there and was able to convince the Mysterons to release their hold over Earth's cities in a confrontation. Back at Cloudbase, Blue was present with Scarlet and White as the Mysterons reiterated their position that they would continue to seek vengeance, with Scarlet mulling over the fact that a surprise attack on their city could never work again. (COMIC: Traitor Black Gives In!)

Further service with Spectrum
In 2069, Blue and Captain Grey were in charge of security operations for the opening of London's rebuilt Car-Vu, which was to be attended by the World President. They had thrown "a massive security screen" across the city, with Colonel White assuring reporters that there would be "no repeat of history". (PROSE: Thunderbirds Film for Sale!)

Behind the scenes

 * A pastiche of Captain Blue appears in PROSE: The Indestructible Man: Adam Nelson, a friend of Grant Matthews.