Captain Strok was an Imperial officer in the staff of High General Touno in the southern district of the planet Svivren. A blond-haired blue-eyed Human male, he was also a spy for both Black Sun and Black Nebula. When Mara Jade led a raid on Svivren in an attempt to capture Black nebula leader Dequc, Strok passed on the information to Dequc so he could replace himself with an impostor. During the raid Strok faked his own death, going to Nezmi with Dequc. It was there, in the Nebula headquarters within the Bubble Cliffs, that he was killed by Jade after they both recognized each other.