Captain America 4 director Julius Onah opened up about making Red Hulk a nonverbal villain, as well as how star Harrison Ford impacted that choice.

In the film, Anthony Mackie’s Sam Wilson plays Captain America and finds himself trying to find out who’s behind President Thaddeus Ross’ (Harrison Ford) assassination attempt. As Ross tells the new Cap to reassemble the Avengers, it’s discovered that he’s taking gamma-radiated pills, and when he’s angry, he transforms into Red Hulk.

While Harrison Ford’s Red Hulk has cemented itself as one of the standout features of Captain America 4, the character interestingly did not have any dialogue in the film. The villainous, rage-fueled monster only made a brief appearance in Captain America: Brave New World but failed to deliver any lines in his big-screen debut.