Allison Janney (I, Tonya), Odessa A’zion (Marty Supreme), Ewan Mitchell (“House of the Dragon”), Cherry Jones (“24”), and Benedict Wong (Weapons) have joined the cast of Fonda.

They join the previously announced Mia Goth (Frankenstein), Andrew Scott (All of Us Strangers), Frank Dillane (“Fear the Walking Dead”), and Nathan Stewart-Jarrett (Candyman).

The psychological thriller is written and directed by Academy Award and Palme d’Or winner Justine Triet (Anatomy of a Fall).

The logline reads, “A psychological thriller set in a seemingly idyllic huis clos, Fonda takes us on a vertiginous dive into the shifting limits of a sound mind, as grief and obsession take hold.”

The project reunites Triet with Anatomy of a Fall producers Marie-Ange Luciani of Les Films de Pierre and David Thion of Les Films Pelléas, as well as sales agent MK2 Films.

Variety first reported on the cast additions.