Via Screenrant.com:

Warning! SPOILERS for Star Wars Rebels Season 4 ahead!

The latest episode of Star Wars Rebels features voices cameos from nearly a dozen classic Star Wars characters – and we’re going to break down who they were and where their lines came from.

The final season of Star Wars Rebels has been full of surprises, from Kanan’s shocking death to Ahsoka’s surprising return. But beyond just shocking fans with big moments, Rebels has also been reflecting on how far its characters have come and what its place will be within the Star Wars saga. In tonight’s episodes, that reflection comes through in the form of visions and voices.

The visions appear in tonight’s first episode, “Wolves And A Door”, when Ezra, Sabine, Hera, Zeb, and Chopper travel with the Loth wolves through a hyperspace tunnel to the Jedi Temple. While inside the tunnel, images from previous seasons flash before them. Primarily, these visions show moments from the earliest interactions between Ezra and the Ghost Crew, but they also show moments where Kanan embraces his Jedi training and begins passing it on to Ezra. These are fundamental moments from the series – especially for Kanan and Ezra’s relationship – and they remind us how close-knit a family the Ghost crew really became over these past four seasons.

As for the voices, these can be heard in tonight’s second episode, “A World Between Worlds”, when Ezra opens the portal to the surreal Force realm that exists outside of time and space. The biggest clue that this place isn’t of the normal universe are the voices Ezra can hear talking – snippets of lines heard in Star Wars Rebels, yes, but also other in other Star Wars films that come both before and after.

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