Created by Once Upon a Time bosses Adam Horowitz, Eddy Kitsis and Ian Goldberg, the 1980s-set horror-drama takes place at Camp Clearwater, a seemingly idyllic Midwestern summer camp, which quickly turns into “unforgettable scares and evil at every turn.” (TVLine’s Matt Mitovich served as an early consultant on the project.)
Per our sister site Deadline, Mesure will appear as a small-town sheriff who loves his peaceful community and is not pleased when things at the camp go awry. As previously reported, Mitchell will play Deb, Camp Clearwater’s new owner, who has a potentially dark reason for wanting control of the grounds.
Of course, Mesure and Mitchell have also both appeared on Once — he as the pirate Black Beard and she as the Frozen arc’s Snow Queen. They join a Dead of Summer cast that includes Elizabeth Lail (who played Once‘s Princess Anna), Mark Indelicato (Ugly Betty), Zelda Williams (Teen Wolf), Paulina Singer (Gotham) and Ronen Rubinstein (Orange Is the New Black).