Krall (Star Trek)

Krall is the the main antagonist of the 2016 sci-fi action movie Star Trek Beyond. He was a human who had been mutated into a reptilian form by alien life-extending technology.

Krall was portrayed by Idris Elba. who previously portrayed Colin Evans in No Good Deed, Russell "Stringer" Bell in the HBO series The Wire  and voiced Shere Khan in the 2016 The Jungle Book movie.

History
Krall was originally known as Balthazar M. Edison in the 22nd century. Early in life he joined United Earth's Military Assault Command Organization (MACO), rising to the rank of Major. He fought both against the Xindi and then the Romulans in the Earth-Romulan War. After the founding of the Federation the MACO forces were absorbed into Starfleet. Edison was given the Starfleet rank of Captain and in 2163 was named the commanding officer of the USS Franklin, the first Earth ship to have reached warp four.

A year later, the Franklin disappeared. Popular speculation ranged from the ship being captured by the Romulans to the ship being caught by a giant green hand. Having crashed on the M-class planet Altamid, Edison and the other Franklin survivors felt abandoned by the Federation. Sinking into madness, the survivors came to despise the Federation for its ideals of peaceful cooperation. Transformed, Edison began calling himself Krall during this time. Finding a cache of weapons, ships, and technology on Altamid, Krall and his forces began plotting their revenge against the Federation.

Learning of an ancient bio-weapon, Krall began reassembling the components. About 100 years after the Franklin crashed on Altamid, Krall learned the Enterprise had the final component. Luring the Enterprise to Altamid, Krall and his forces destroyed the ship and took many of the surviving crew prisoner. Once Krall obtained the final component, he left to destroy the nearby Yorktown Station with the bioweapon.

Captain James T. Kirk and the remainder of the surviving Enterprise crew followed in pursuit. Krall's forces were destroyed, and Krall himself was defeated by Captain Kirk when Kirk opened an airlock on the station. Sucked out into space, Krall was enveloped and killed by the very bioweapon he planned to use on the inhabitants of Yorktown Station. Afterwards, Kirk and Commodore Paris closed the file on Krall and the crew members of the USS Franklin.