Star Wars: Episode IX director J.J. Abrams has just recruited another former collaborator. Deadline reports Lord of the Rings star Dominic Monaghan, who worked with Abrams on Lost, has joined the latest Star Wars film. Details about his role are currently being kept under wraps.

“The galaxy far far away has had almost as much influence as the one I live in, so I am delighted to be involved,” Monaghan said.

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Since the principal cast was announced last month, it is unclear how large a role Monaghan will play in the film or if we'll even recognize him when he does show up. After all, other A-list actors like Tom Hardy and Daniel Craig have cameoed in the franchise wearing full Stormtrooper armor, which hid their faces. Further, Mission Impossible: Fallout star Simon Pegg gave voice to an alien creature named Unkar Plutt, a role in which he was nigh unrecognizable.

Last month, Abrams brought another one of his actors into the Star Wars fold: Keri Russell, who worked with Abrams on his beloved series Felicity, in which she played the titular role. Both Monaghan and Russell will join series newcomers Naomi Ackie and Richard E. Grant, as well as returning cast members like Mark Hamill, Billy Dee Williams and Anthony Daniels.

Directed by J.J. Abrams, Star Wars: Episode IX stars Daisy Ridley, Adam Driver, John Boyega, Oscar Isaac, Lupita Nyong’o, Domhnall Gleeson, Kelly Marie Tran, Joonas Suotamo, Billie Lourd, Anthony Daniels, Mark Hamill, Billy Dee Williams, and Carrie Fisher, with Naomi Ackie and Richard E. Grant. It is scheduled to open on Dec. 20, 2019.