Oscar Isaac is officially returning to the Marvel fold.

Seven months after Variety first broke the news that Isaac was in talks to star in Marvel Studios’ upcoming Disney Plus series “Moon Knight,” Marvel has finally confirmed that the 42-year-old actor will headline the project.

Naturally, Marvel did so via a tweet that reads, “‘WE ARE MOONKNIGHT’ – Oscar Isaac” — a sly tip of the hat to the fact that Isaac’s character — elite soldier and mercenary Marc Spector — has multiple, distinctive personalities, which he develops after he becomes the embodiment of Khonshu, the Egyptian god of the moon.

It’s unclear why it took Marvel this long to confirm one of the worst kept secrets in Hollywood, beyond the studio’s general penchant to make official announcements on its own schedule. In March, “The Falcon and the Winter Soldier” star Sebastian Stan even mentioned that Isaac would be starring “Moon Knight” during a virtual press conference for the Disney Plus series, which Marvel Studios chief Kevin Feige, also present, didn’t contradict. Regardless, this tweet remains the first official word from the studio.

This will be the actor’s second swing at an Egyptian-based Marvel character, after he played Apocalypse in 2016’s “X-Men: Apocalypse” for 20th Century Fox. Isaac will next appear in the sci-fi epic “Dune” for Warner Bros., and he played ace pilot Poe Dameron in the most recent “Star Wars” trilogy for Marvel’s sister company Lucasfilm.

The rest of the “Moon Knight” cast has yet to be announced, but in January, Variety and other outlets reported that Ethan Hawke had landed a major role in the project, reportedly as the lead villain. May Calamawy (“Ramy”) is also reportedly attached in an unknown role.

Jeremy Slater (“The Umbrella Academy”) is the head writer and “Moon Knight,” and Mohamed Diab (“Clash”), and Justin Benson and Aaron Moorhead (“The Endless”) are directing. The project was set to begin shooting in Hungary in March, with a planned release in 2022.