Obviously, Ewan McGregor reprises his role as Obi-Wan Kenobi from the Star Wars prequel trilogy (the late Sir Alec Guinness originated the role in the original Star Wars trilogy). Hayden Christensen, who played Anakin Skywalker/Darth Vader in Attack of the Clones (2002) and Revenge of the Sith (2005) also joins the party, presumably reprising the role of Anakin/Vader in flashbacks, if not putting on the big black suit himself.
Also reprising their roles from the prequel trilogy are Joel Edgerton and Bonnie Piesse, who of course played Uncle Owen and Aunt Beru in Attack of the Clones and Revenge of the Sith, and were given the care of the young Luke Skywalker in Revenge of the Sith. The late Phil Brown and Shelagh Fraser played the two characters in Star Wars (1977).
Joining them are Indira Varma (Rome, Game of Thrones), O'Shea Jackson Jr. (Straight Outta Compton), Kumail Nanjiani (Eternals), Sung Kang (The Fast and the Furious), Benny Safdie (Uncut Gems), Simone Kessell (Terra Nova, Of Kings and Prophets), Rupert Friend (Homeland) and Moses Ingram (The Queen's Gambit).
Star Wars: Obi-Wan Kenobi starts shooting in April 2021 and will air on Disney+ in 2022.
Lucasfilm are also producing The Book of Boba Fett (shooting at the moment) for a late 2021 bow and Season 3 of The Mandalorian for an early 2022 debut, alongside the mini-series Andor. Ahsoka and Rangers of the New Republic are also in the planning-stages, whilst the next Star Wars feature film, Rogue Squadron, is currently in pre-production for a late 2023 debut.