Doctor Who alum Matt Smith has reportedly joined the sprawling cast of director J.J. Abrams' Star Wars: Episode IX in an undisclosed role.

The news comes from Variety, citing unnamed sources, rather than Lucasfilm, so it's not an official announcement. The development follows a report last week that Lord of the Rings actor Dominic Monaghan has joined the trilogy-closing film, which kicked off production at the beginning of the month.

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If the report is accurate, Smith joins a confirmed cast that includes Daisy Ridley, Adam Driver, John Boyega, Oscar Isaac, Lupita Nyong’o, Domhnall Gleeson, Kelly Marie Tran, Joonas Suotamo, Billie Lourd, Naomi Ackie, Richard E. Grant, Anthony Daniels, Billy Dee Williams, Mark Hamill and Carrie Fisher.

Abrams, who directed 2015's Star Wars: The Force Awakens, returned to take the helm of Episode IX in September 2017 following the abrupt departure of Colin Trevorrow. The film brings to a close the Skywalker saga that began in 1977 with the franchise-launching A New Hope.

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Fisher, who passed away in December 2016 after she completed filming of The Last Jedi, will be included in Episode IX through unused footage shot for the previous two installments of the series.

Star Wars: Episode IX arrives in December 2019.