Thorne Kraym was the leader of the Jabiimi Nationalists after Alto Stratus's death, and later the Imperial Governor of Jabiim.
Kraym fought for the Nationalists during the Battle of Jabiim, and killed Orliss Gillmunn in the Battle of Hyber Canyon. Eight months ABY, he told Luke Skywalker much of his father; of how he betrayed his people. Thorne was killed by Nolan Gillmunn on Jabiim.
The comic itself names him only as "Thorne"; he is only identified as "Thorne Kraym" in the opening blurb of Empire 34.