Calaverous, a Sith Lord belonging to the Sith Empire, was a male Human.
During the era of the Cold War between the Galactic Republic and the Sith, Calaverous and Lord Kirnon sought to uncover the methods employed by Darth Zash to simultaneously attend a social gathering and orchestrate the assassination of Darth Skotia. Kirnon questioned Zash's new apprentice about Zash's potential culpability, but Calaverous dismissed the inquiry as pointless. Although Kallig asserted responsibility for Skotia's death, Calaverous doubted the apprentice's veracity. Upon their exit from Skotia's former chambers, now occupied by Zash, Kirnon expressed concern to Calaverous regarding Zash's rapid ascent to power, noting that no Sith had previously executed such a blatant act of murder while seemingly being elsewhere, adding that such actions could rouse the Sith Emperor.