Harma was an Ice Warrior who lived during the 26th century. He accompanied Abslom Daak and his crew in the Kill-Wagon. (COMIC: Star Tigers, Nemesis of the Daleks, Emperor of the Daleks!; PROSE: Between the Wars: A Slow Night in Paradise)
During a battle against the Daleks over the planet Hell, the Kill-Wagon was badly damaged and forced to crash land, killing Harma, Salander and Mercurius and leaving Daak as the last survivor. Their corpses were found by the Seventh Doctor. (COMIC: Nemesis of the Daleks)
Later, Harma was revived along with Salander and Mercurius, having been healed by the medicine of the native Helkans. They resided in a camp with Taiyin's cyrogenic freezer-unit when they were found by the Seventh Doctor and Bernice Summerfield, who were intercepted by Daak. The camp was then transmated away, bringing the party to Daak's seemingly human benefactors, who promised to revive Taiyin in return for the Doctor. However, the Doctor revealed that the benefactors were actually robots used by the Daleks, and that they had been transported to Skaro. Fighting their way through the Daleks loyal to the Emperor Dalek, Daak's party found Taiyin's body, only to be rendered unconscious by gas emitted from her mouth.
While the Doctor was taken for interrogation, the crew and Benny were conditioned to serve the Daleks, their lives used as leverage to force the Doctor to accompany the Daleks to Davros' rebel base on Spiridon. A battle between the Dalek factions ensued, during which the Doctor freed his allies, who fought the Daleks alongside the native Spiridon. The Doctor and company were eventually captured by Davros, who had them accompany him back to Skaro, where he saw to the conquest of the planet and his establishment as the new Emperor Dalek, having his predecessor exterminated.
Believing Taiyin to still be on Skaro, Daak, after badly wounding Davros, was intent on rescuing her. When Daak insisted on staying behind, the Doctor had his crew force him into the TARDIS. Following this ordeal, the Doctor took the crew to a bar on the planet Paradise. (COMIC: Emperor of the Daleks!)
Behind the scenes
Harma would have been killed off once again in the proposed ten-issue miniseries After Daak. However, the series was never commissioned.