The American Horror Story Season 13 cast list has been revealed, and we’re in for the surprise of the season with the return of the ultimate icon, none other than Jessica Lange. This Halloween has been accompanied by the biggest treats of all time, from the thrilling and horrific episode of It: Welcome to Derry to the ultimate cast list for a new season of AHS.While Jessica Lange, the American Horror Story icon, is the biggest reveal on the cast list, there are a few other unexpected names that might really surprise you. Keep reading to find out how Ryan Murphy has dropped the biggest scare this Halloween with this cast list reveal.Ryan Murphy is joined by a jaw-dropping ensemble for American Horror Story Season 13 View this post on Instagram Instagram PostRyan Murphy has been teasing American Horror Story Season 13 for the longest time with cryptic posts and mentions. Turns out, this tease was completely worth it, because in a jaw-dropping development, Jessica Lange will be returning for Season 13, and the surprises don’t end there.The end of the video reads:"Surprise, b*tch! I bet you thought you'd seen the last of me"And it couldn’t be more on the nose.Along with Jessica Lange, American Horror Story Season 13 will mark the return of many key regulars for the franchise. Namely, Lange will be joined by Sarah Paulson, Angela Bassett, Evan Peters, Kathy Bates, Billie Lourd, Leslie Grossman, Gabourey Sidibe, and last but not least, Emma Roberts.The signature font of AHS in the cast list announcement video wasn’t done delivering surprises, as the name Ariana Grande was also included. The Wicked star is set to join Season 13 of the FX original, marking a reunion with Ryan Murphy after the horror comedy Scream Queens, which was released a decade ago.While Murphy did not reveal a release date for the upcoming addition to the dismaying anthology series, the video did end with:"Halloween 2026"So, the newest installment from co-creators Ryan Murphy and Brad Falchuk can be expected next year, around the same time.While Ariana Grande’s addition to AHS 13 was quite surprising, Jessica Lange’s return to the cast list was the biggest reveal. Fans of the horror anthology series are, quite plainly, losing their minds over the icon’s comeback. This excitement is especially strong since she had previously clarified that it had been more than a decade since she last starred in American Horror Story and had no intention of returning to it.It is quite special that she is returning for the thirteenth installment, the number 13 being as soaked in dark superstitions as it is.Keep following Soap Central for more such exciting updates on your favorite shows!