Fantastic Four: First Steps marks the first time the Silver Surfer has appeared in the Marvel Cinematic Universe. It was a bit jarring for some that Julia Garner was cast as the surfer and that they were a woman instead of a man. However, there’s a possible explanation for why this is different from the comics and previous Fantastic Four movies.

The latest of the new Marvel movies is here with the release of The Fantastic Four: First Steps, and leading up to its debut in theaters you might have heard that the Silver Surfer would be in the movie after Doug Jones previously played him.

The Fantastic Four: First Steps ends with Galactus being teleported to the farthest reaches of the universe, with Silver Surfer turning against him to push him through the portal, sacrificing herself in the process.