The first live action appearance of Brendol Hux, father of Domhnall Gleeson's character General Hux from the sequel trilogy. Brendol is portrayed by Domhnall's brother Brian Gleeson.
Bo-Katan mentions that Mandalore has always been too powerful for any one enemy to defeat and that it is only ever the division of the Mandalorians that destroys them time and time again. This links to Star Wars: The Clone Wars (2008), in which Bo-Katan played a central role in dividing the Mandalorian people by siding with Death Watch over her sister Satine. This allowed Maul to take control of Mandalore, resulting in the death of Satine, and kickstarted Bo-Katan's journey.
Gilad Pellaeon, played by Xander Berkeley, is actually an important figure from Star Wars Legends. He was created by author Timothy Zahn to act as the Watson to Thrawn's Holmes, but became a major Imperial leader in his own right, actually taking command of the Imperial Remnant and leading them in the war against extragalactic invaders called the Yuuzhan Vong. Captain Pellaeon seems to be Thrawn's right-hand-man in Disney canon as well. In both the Legends novels and in Star Wars: Rebels (2014) Pellaeon is the captain of the Imperial Star Destroyer Chimera; the Chimera serves as Grand Admiral Thrawn's flagship both during the time of the Empire when he is the commander of the 7th Fleet and when Thrawn returns from the Unknown Regions and takes command of the Imperial Remnant forces.
Axe Woves uses the call sign "Gauntlet" when contacting Bo-Katan's Kom'rk Class fighter. In the Mandalorian language Mando'a, Kom'rk means Gauntlet.
Mando and Grogu pass by a stall, with Grogu mischievously utilizing his new exoskeleton to grab food. One of the products Grogu picks up is a Meiloorun, a fruit that was prominently featured and mentioned in Star Wars Rebels.