Krall, formerly Balthazar M. Edison, was a Human who served in the United Earth Military Assault Command Operations and later commanded the Starfleet vessel USS Franklin. Marooned on the planet Altamid after the Franklin crashed, and embittered by what he saw as the Federation's abandonment, he used alien energy-transference technology to prolong his life, mutating his body and remaking himself into the warlord Krall.
Consumed by hatred of the Federation and its ideals, Krall sought to destroy it using an ancient superweapon, the Abronath, before being stopped by James T. Kirk. He was the antagonist of Star Trek Beyond, set in the alternate Kelvin timeline. This overview summarizes information drawn from Memory Alpha under CC BY-SA; see the Timeline for chronological details.
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