In 7 BBY, a Lasat mercenary worked for Saw Gerrera and his Partisans during their campaigns on the planet Onderon. A unit of Imperials, including Alexsandr Kallus, was sent to Onderon to deal with the rebels. This mercenary killed most of the unit, but spared Kallus.
Kallus, while an agent of the Imperial Security Bureau, later recounted the story of his encounter with this mercenary to another Lasat rebel named Garazeb Orrelios.
In the 2017 novel Rebel Rising, a Lasat is seen on Saw Gerrera's Wrea outpost. When the author Beth Revis was asked if the Lasat in Saw's base and the one that Kallus encountered were the same, the author answered that in her mind it was supposed to be.
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