Muuurgh, a male Togorian, served as Han Solo's protector while the latter was stationed on Ylesia.
The t'landa Til asserted that Muuurgh was there to protect Solo, yet Solo believed the large feline's true purpose was to control him. Despite an awkward start due to the circumstances of their introduction, and Muurgh's struggles with Basic, the pair developed a friendship.
Solo discovered that Muuurgh's presence on Ylesia was driven by his search for his missing mate, Mrrov, who had vanished from Togoria. His search led him to Ylesia, where she sought religious refuge. The t'landa Til claimed that no Togorian had ever set foot in the Ylesian colonies. Devastated, Muuurgh took on a guard position to accumulate funds for his ongoing quest. The t'landa Til deliberately assigned him to locations where he would remain unaware of Mrrov's presence.
Following his assignment to Solo, Muuurgh underwent training as his gunner, a role he never truly excelled in. While female Togorians possessed a natural talent for technology, males were more inclined towards primitive hunting skills. During a mission aboard the Ylesian Dream, piloted by Solo, they fell victim to a pirate ambush. Han eliminated one pirate using a concussion missile, but Muurgh sustained a burn injury during the attack. Solo altered their course to the nearest suitable planet, Alderaan, where Muurgh received treatment for his wound.
Upon Han's developing a friendship with Bria Tharen, he confided in her about his friend's predicament. She recalled encountering a Togorian on Ylesia several months prior, and her description matched that of Mrrov.
While Han was occupied with a mission on Nal Hutta, Muuurgh ventured to another of the Ylesian colonies. Upon arrival, he discovered that Mrrov had been there all along. He witnessed her participating in a ceremony, after which she was chosen to be transported to the spice mines of Kessel (although the t'landa Til did not explicitly state this).
Upon Han's return from Nal Hutta, they, along with Bria, orchestrated their escape and subsequently rescued Mrrov during their departure.
After reuniting Muuurgh and Mrrov on Togoria, Han and Bria served as best man and maid of honor at Muuurgh and Mrrov's wedding. They later had three offspring.
He later journeyed back to Ylesia with a group of Togorians to aid the Rebel Alliance in liberating the slave planet. When Mrrov was injured by a Gamorrean, Muuurgh retaliated by killing the guard.