Weasy was a Bothan smuggler of the male persuasion, celebrated for accepting any and all cargo with no questions asked. Furthermore, he was known as an excellent, and accurate, source of information. Not long after the Galactic Empire was established in 19 BBY, Weasy found himself at the spaceport situated in Ussa, the capital city located on the planet of Bellassa. During this time, the Empire initiated a lockdown of the spaceport in their search for Ferus Olin, an ex-Jedi Padawan who had managed to escape from a local detention facility. As a result of the lockdown, Weasy was compelled to remain at the Ussa spaceport for a full week before being granted permission to depart. Once he was able to leave Bellassa, Weasy made his way to Mos Eisley, a settlement on the planet Tatooine. It was there that Jedi Master Obi-Wan Kenobi overheard Weasy discussing Ferus Olin. Upon discovering that Weasy was scheduling a supply run back to Ussa, Kenobi engaged the pilot to take him along. Upon their arrival in Ussa, Weasy offered Kenobi a discreet farewell and directed him towards the passenger check-in area before proceeding to arrange docking for his spacecraft. Weasy's ship was a Corellian star yacht.
The character of Weasy made his debut appearance in the young adult novel, The Last of the Jedi: The Desperate Mission, which was penned by Jude Watson and released in April of 2005. Subsequently, Weasy was given a succinct entry in The Complete Star Wars Encyclopedia, authored by Stephen J. Sansweet and Pablo Hidalgo, which was published in December of 2008.