Jac Schaeffer Tapped as New Showrunner for Amazon’s Fourth Wing Adaptation

EXCLUSIVE: Amazon MGM Studios’ adaptation of Rebecca Yarros’ bestselling novel ‘Fourth Wing’ is getting a big-name new showrunner.

‘Agatha All Along’ and ‘WandaVision’ creator Jac Schaeffer has signed a deal with the studio and, as part of that, is in talks to board the… pic.twitter.com/lI1BRBX360

— Deadline (@DEADLINE) July 1, 2025

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Jac Schaeffer, known for WandaVision, has been named showrunner for Amazon MGM’s upcoming Fourth Wing series, based on Rebecca Yarros’s bestselling fantasy novel. This follows Schaeffer’s new overall deal with the studio and the exit of original showrunner Moira Walley-Beckett. The high-profile adaptation is being developed by Outlier Society and Kilter Films.