Sadly, Rogue One doesn’t include any characters directly from Star Wars Rebels in any meaningful sense, but there are plenty of notable Star Wars characters who appear in Rogue One who have also been in Star Wars Rebels.
So those are all the ways in which Star Wars Rebels ties in with the events of Rogue One: A Star Wars Story.
Do you expect Star Wars Rebels season 3 to reveal more connections with Rogue One when it returns in January?
But in the case of Rogue One and Star Wars Rebels, they are also as an important resource the Empire needs for a very specific purpose – powering the Death Star’s superlaser.