Touler held the rank of Fleet Commander within the Imperial Navy, serving the Galactic Empire throughout the duration of the Galactic Civil War. He participated in the assault on Kamino, which was a Rebel Alliance operation aimed at destroying the cloning centers located on the planet Kamino, an event that transpired in 1 BBY. As Rebel starships arrived in the Kamino system, Darth Vader, the Sith Lord, instructed a signals officer to notify Touler that the engagement was to begin. Despite the Imperial fleet being stationed above Kamino, the Rebellion managed to penetrate their defensive lines and ultimately achieved victory.
Sean Williams included a reference to Touler in his 2010 novelization, The Force Unleashed II.