In a surprise move, Victoria Alonso, a longtime Marvel Studios executive who has been with the company since before the release of 2008’s Iron Man, has left the studio, according to reports.

Alonso started as Marvel’s chief of visual effects and post-production in 2006 and served as a co-producer on the studio’s initial raft of releases, Iron Man, Iron Man 2, Thor, and Captain America: The First Avenger. As of 2012’s The Avengers, she was upped to the title of executive producer, a title she’s used on every single Marvel Studios release since. In 2021, she was promoted within the studio to become president of physical and post-production, visual effects and animation production.

According to The Hollywood Reporter, which broke the news of her departure, the reasons for her split with Marvel are unknown, but her final day was last Friday.

Alonso’s credit will appear on both Guardians of the Galaxy Vol. 3 and The Marvels, as well as Disney+’s Secret Invasion, Ironheart, Echo, and Agatha: Coven of Chaos.

It’s unclear what Alonso’s next moves will be post-Marvel, but it should be noted that Alonso had already started working on projects outside of Marvel Studios; she was one of the producers on the 2022 legal drama Argentina, 1985, which debited at last year’s Venice International Film Festival to critical acclaim, and went on to be nominated for Best International Feature Film at this year’s Academy Awards.

Marvel Studios declined comment when approached.

Revisit happier times by returning to Marvel’s Hall H panel at San Diego Comic-Con last year.