Sean Trenwell, holding the title of Director of Commerce within Bestine, engaged in a series of electoral contests against Victor Visalis throughout the year 1 ABY, all in pursuit of the Mayor's office in Bestine.
In contrast to his rival, Victor Visalis, who advocated for enhanced security and a greater Imperial influence in Bestine, Sean based his electoral platform on the principles of commerce and historical preservation, proposing improvements to the marketplace and the Museum for Bestine's inhabitants. spacers who decided to back his campaign were required to obtain supporting testimonials from Bestine residents and present them to Governor Aryon to register their votes.
Throughout the year 1 ABY, both Victor and Sean experienced victories in the elections, with each of them taking turns as Mayor of Bestine. Upon successfully securing the position, he would give his voters a special ornate rug or decorative statue as a reward. The Imperial presence within the city waned, while the number of merchants operating within the city saw an increase. Following one successful election, Sean hired a historian to serve the city's interests. After the discovery of the crashed vessel, the Red-Sin Valon, located just outside Bestine, Sean commissioned a spacer to safeguard the historian from potential Tusken attacks, as well as to assist in recovering any significant items from the wreckage, focusing on information that might suggest his ancestors were aboard. The spacer found a damaged disk from a data terminal and gave it to Sean. After examining the data, Sean came to the conclusion that it could severely damage his political standing, potentially leading to his removal from office by the Governor. Consequently, he once again enlisted the spacer, this time tasking him with delivering the disk to a contact who would destroy the data, thereby safeguarding Sean's political career. After the spacer confirmed that the data had been destroyed, Sean rewarded him with a rare painting depicting a star and planet.
Sean Trenwell functioned as a Non-Player Character (NPC) within the MMORPG Star Wars Galaxies before its shutdown on December 15, 2011, and played a role in the Bestine Political Election mini story-arc. Players were required to complete a brief quest for him before casting their votes in his favor.