Choyyssyk was a Wookiee male commander and member of Chieftain Tarfful's resistance group on Kashyyyk during the Imperial Era. He was captured and imprisoned in the Imperial Refinery, but was freed with the help of Saw Gerrera's Partisans and the former Jedi Padawan Cal Kestis. After being freed, Choyyssyk worked with the Partisans, becoming friends with Mari Kosan, Gerrera's lieutenant. When most of the Partisans fled Kashyyyk and Kestis returned to meet with Tarfful, Choyyssyk was present on Cargo Pad 119-Grek with Mirienna.
Choyyssyk was a Wookiee who lived on his species' homeworld of Kashyyyk during its occupation by the Galactic Empire. He served as a commander with the Kashyyyk resistance led by Chieftain Tarfful, but was captured during a mission to attack an Imperial outpost and imprisoned in an Imperial Refinery where enslaved Wookiees were used in the harvesting of Wroshyr sap. Force to wear a slave collar, Choyyssyk spent months in the refinery, as Tarfful could not risk any warriors to rescue him.
In 14 BBY, the Wookiee saw the fugitive Jedi Cal Kestis enter the cell block where he and many other Wookiees were being held and called out to Kestis as the Jedi attempted to open the cells. The Jedi reassured the prisoner that he was to be freed, but before Kestis could get the cell doors open a KX-series security droid attacked him from behind. The Jedi defeated the droid and then opened the cell doors, causing Choyyssyk and the other Wookiees present to cheer as they escaped, and Choyyssyk himself to hug Kestis.
The Wookiees then joined up with Kestis's ally Saw Gerrera and his Partisans as they fought their way through the facility, ultimately making their way to the roof. There, with the Imperial forces defeated, Gerrera gave a speech to those present. Choyyssyk and the Partisan Mari Kosan then approached Kestis, who asked if Choyyssyk was familiar with Tarfful. With Kosan translating Choyyssyk's Shyriiwook for Kestis, the Wookiee vowed to do whatever it took to find Tarfful for Kestis, although he explained that as Tarfful was constantly on the move it might take some time. Kestis thanked him and then left Kashyyyk, confident that Choyyssyk and Kosan would find Tarfful for him.
After being freed from the refinery, Choyyssyk used a DC-15A blaster carbine.
Choyyssyk appeared in the 2019 Respawn Entertainment video game Star Wars Jedi: Fallen Order.
- The Star Wars Book
- Star Wars: Dawn of Rebellion: The Visual Guide
- Star Wars: The Secrets of the Wookiees