Deserter clone trooper Cut Lawquane and his family first appeared in the Season 2 episode of Star Wars: The Clone Wars, "The Deserter." The episode established Cut's reasons for leaving the Republic Army, challenging the notion that war and unflinchng loyalty are the only paths for the clones.

The planet Saleucami first appeared in Star Wars: Revenge of the Sith as part of the epic Order 66 montage. In that scene, we see Jedi Stass Allie killed by her formerly-loyal clone trooper wingmen.

While the Bad Batch only learn of their inhibitor chips here, the existence of the implants was first revealed in the Star Wars: The Clone Wars Season 6 episode "Conspiracy."

In this episode, the Empire impliments a new form of galcticic registration: the chain code. Similar to a social secruity number in the United States, chain codes were first introduced in the series premiere of The Mandalorian when the Client gives Mando a chain code belonging to his next mark.

Omega is nearly attacked by a fledgling nexu, a creature first seen in the Geonosian arena in Star Wars: Attack of the Clones.

Those 8D-series droids get around! One can be seen moving crates near the Imperial checkpoint in this episode; you can also spot an 8D model torturing a poor gonk droid in Star Wars: Return of the Jedi, walking the streets of Calodan in The Mandalorian Chapter 13, and endlessly turning the spit at Ronto Roasters in Star Wars: Galaxy's Edge.

The Aurebesh writing at the chain code checkpoint says "Imperial Informational Station."

Just like in Star Wars: The Clone Wars, Wrecker once again uses Gonky for his weightlifting routine. It's hard to argue with the results.