Victoria Alonso, the longtime and high-profile Marvel Studios executive whose time with the company dates back to the first Iron Man, has left the studio, multiple sources tell The Hollywood Reporter.

A few names have been attached to every single Marvel Studios movie since the first one, Iron Man, in 2008. Kevin Feige is the one most people know. Louis D’Esposito is another, and a third is Victoria Alonso.

A reason for Alonso’s sudden departure, which comes after 17 years at Marvel Studios, was not immediately clear.

Marvel Studios executive Victoria Alonso has exited the studio, Variety has confirmed. She joined Marvel Studios in 2006 as executive vice president of visual effects and post-production, serving

Alonso has been one of Marvel's longtime producers and executives, overseeing visual effects and post-production on films and television shows for the key Disney brand.

Alonso joined Marvel in 2005, back when the MCU was still in the very early stages of development. Her initial role in the company was Executive Vice President of Visual Effects and Postproduction. Starting in 2008 with Iron Man,