Churnis served as a member of the Imperial Guard of the Sith Empire throughout the Galactic War. He was stationed on the planet during the Battle of Corellia, where he was responsible for protecting the Imperial Moff Alvon Zamar.
The character Churnis is featured in the Imperial Agent storyline's "Eve of Destruction" mission within the video game Star Wars: The Old Republic. Players have the option to eliminate him upon their initial encounter; however, if they choose this course of action, another NPC bearing the identical name, "Imperial Guard Churnis," will be found guarding Moff Zamar inside his shuttle.