According to Entertainment Weekly, The Walking Dead star has captured the lead role in the upcoming series.

Martin-Green’s casting marks the first time an African-American woman has had the top role in a Star Trek series. As has been previously reported, Discovery’s lead character holds the rank of Lieutenant Commander (with caveats) aboard the titular vessel. Deadline is reporting that her character’s name will be Lieutenant Commander Rainsford.

The Hollywood Reporter has also confirmed Martin-Green’s casting, noting that she would still portray series regular Sasha on The Walking Dead. As Discovery is expected to begin filming imminently, this should pose no conflict for Martin-Green as shooting on The Walking Dead’s eighth season will not begin until Summer 2017. Beyond The Walking Dead, Martin-Green has regularly appeared in The Good Wife and Once Upon a Time.

CBS has declined to confirm the casting to TrekMovie, Entertainment Weekly, The Hollywood Reporter, and The Wrap.

Bringing Martin-Green on board would represent the most important piece of casting done by the Discovery team. Beyond being the show’s lead character, previous reporting suggests that casting this role had proven difficult and had caused some internal stress within CBS. This represents Discovery’s seventh casting since late November, with Martin-Green adding to the ranks of Michelle Yeoh (Captain Georgiou of the U.S.S. Shenzhou), Anthony Rapp (Lt. Stamets), Doug Jones (Lt. Saru), Chris Obi (T’Kuvma), Shazad Latif (Kol), and Mary Chieffo (L’Rell).