Gungi previously appeared in season five of The Clone Wars during the four-part Younglings story arc beginning with The Gathering (2012).
A darker furred Wookiee can be seen among the tribe. It is confirmed to be Chief Tarfull from Star Wars: Episode III - Revenge of the Sith (2005), Tarfull and Chewbacca helped Yoda escape the planet after Order 66. Tarfull soon becomes the leader of the resistance movement against the Empire on Kashyyyk. Sometime around 14 BBY rebel leader Saw Gerrera arrives on Kashyyyk to help Tarfull and his people in their fight against the Empire. They are also briefly assisted by former Jedi Padawan Cal Kestis in Star Wars Jedi: Fallen Order (2019). Tarfull comes to have great respect for Cal after he is able to liberate a large number of Wookie slaves from an Imperial prison.
Elements of this story were originally developed for an unproduced story arc of The Clone Wars that featured the Bad Batch fighting on Kashyyyk. Both the Kinrath creature and the Trandoshan Venemor were designed for the earlier story. Venemor was originally called 'Babwa Venomor' and collaborated with the Separatists rather than the Empire. The Kinrath were much more aggressive in the original story. A clip featuring preliminary animation from this story arc was shown during Celebration Anaheim in 2015, in which 8 Kinrath attacked several Wookiees and Clone Force 99.