10. Zeb And Kallus's Relationship Is One Of The Best Parts
Star Wars Rebels provides fans with plenty of great character pairings, including Kanan and Ezra, Hera and Kanan, Sabine and Ezra, and Chopper and, well, everyone.
That said, one great pairing that is often overlooked, and is in many ways more subtle, is the relationship between Zeb and Agent Kallus. When they first meet in Season 1, they find themselves at odds, not just because they're fighting for opposite sides. Kallus helped the Empire destroy Lasan, Zeb's home planet, and he wielded a bo-rifle, taken from the corpse of a Lasan High Honor Guard.
However, during the second season, the two start to grow on each other. At first, it was in smaller ways, such as when Zeb indirectly saved Kallus in the episode Legends of the Lasat, but when the two find themselves stranded on a Geonosian Moon in The Honorable Ones, they become friends.
This friendship ultimately results in Kallus turning against the Empire, acting as a Rebel informant in Season 3 and joining the cause as a soldier for the fourth season. In the series finale, Zeb brings Kallus to the new Lasat homeward, Lira San, so the pair stay together in the end.