Star Wars: The Force Unleashed (project)
After the "Unleashed" franchise was discontinued following Disney's decision to refresh the "Star Wars" canon in favor of producing a sequel trilogy, Sam Witwer, Marek's voice actor, revealed that Dave Filoni, the creator of the "Star Wars Rebels" animated series, considered bringing Marek back into the new canon and having him appear in that series, but ultimately decided against it because he could not find a way to do so without compromising either the new canon's quality or the character's unique distinctions.
Captain Rex
Rex is introduced to the "Star Wars Rebels" television series, set fourteen years after "Revenge of the Sith", in the season two episode "The Lost Commanders". Now a much older man due to accelerated aging, Rex lives with fellow clone troopers Commander Wolffe and Captain Gregor. The three are sought by the "Ghost" crew upon instructions from Ahsoka, and they ask the troopers for help in establishing a new rebel base. Though the three have had their inhibitor chips removed, allowing them to ignore Order 66, former Padawan Kanan Jarrus initially distrusts them. Wolffe, fearing the consequences for aiding rebels and Jedi, contacts the Galactic Empire to protect the clones. However, Rex convinces Wolffe the rebels can be trusted and repels the Empire, in turn earning Kanan's trust. Rex leaves Wolffe and Gregor to join the Rebel Alliance and to fight alongside the "Ghost" crew and Ahsoka against the Empire. In the epilogue of the series finale "Family Reunion - and Farewell", it is revealed that he was promoted to commander and fought with Hera at the Battle of Endor.