Serchill Rostok was a member of the Rebel Alliance SpecForces, and fought and died in the Battle of Scarif. He volunteered to join the Rogue One team, flying from Yavin IV to Scarif in shuttle SW-0608. He was nicknamed "Rostok the Rock" and held the rank of corporal.
Rostok was a qualified sharpshooter specialist in the SpecForces, and worked with Private Arro Bastern, who served as his spotter. He specialized in camouflage and stealth, and was capable of holding his breath for over fifteen minutes. He carried a sniper-configured A-300 blaster rifle with a electroscope that he believed to be lucky.
- Star Wars: Rogue One The Ultimate Visual Guide