Samara Weaving has reportedly been cast as Emma Frost in Ready Or Not’s X-Men reboot, shifting the role away from the Margot Robbie chatter that had followed it for months. The move points the casting search toward a more specific lane for Marvel, with the film slated for May 5, 2028.
Justin Kroll on X-Men
Justin Kroll wrote that “Auditions for X-Men has been going on since May and the Frost part is the search that has been the most thorough. That said they were always looking to audition this part like all the others so someone like Margot was never a reality since she no longer test for roles.” That framing matters because it turns Emma Frost from a loose rumor into the clearest reported casting priority inside Jake Schreier’s film.
The report also puts Sydney Sweeney and Rebecca Ferguson back in the rumor pile, but only as names that had circulated around the part. For readers tracking the project like a development slate, the useful takeaway is narrower: the Frost role appears to be the one Marvel has pushed hardest while the rest of the ensemble continues to take shape.
Margot Robbie and Harley Quinn
Robbie’s name carried weight here because she played Harley Quinn in Suicide Squad in 2016, reprised the character in Birds of Prey in 2020, and returned again in The Suicide Squad in 2021. She later said she “fell in love” with the character during Birds of Prey, and she described Harley Quinn as “unpredictable” and a “gift” for actors after listening to TED talks of women with schizophrenia to prepare for the role. That history made her an easy speculative fit for Marvel chatter, even if the casting search never got that far.
James Gunn has already said the new DCU has a 10-year slate, and he teased Harley Quinn’s possible return by saying, “That will be revealed down the line.” With The Batman II set for February 18, 2028 and currently in production, the broader superhero calendar is crowded enough that Marvel’s casting choices now land inside a tightly packed release window.
May 5, 2028
May 5, 2028 is the date to watch for X-Men: Reboot, because that is when this casting choice will have to cash out on screen. If Samara Weaving is the name Marvel locks in, the company has its clearest signal yet about the tone of the reboot: less nostalgia casting, more direct build-out around a fresh lead role.
The sharper question now is whether Marvel Studios has finished locking the Emma Frost part or is still using the role as the centerpiece of a wider cast search. Based on the reported pace since May, the answer should arrive through the next wave of casting reports, not through another round of fan speculation.
