Robert Downey Jr. returns as Tony Stark alongside Tom Holland’s Spider-Man in Iron Man 4, the next thrilling chapter in the Marvel Cinematic Universe. This film introduces a new character to the big screen: Riri Williams, aka Ironheart, portrayed by Dominique Thorne. Based on the character from Marvel Comics, Ironheart is a super-genius and a 15-year-old engineering student who creates her own Iron Man-style armor, beginning her journey as a superheroine.

In the comics, Riri Williams is a young prodigy attending MIT on a scholarship. After the tragic death of her father, she builds a suit of armor similar to Iron Man’s using materials stolen from her campus. When Tony Stark learns of her efforts and witnesses her potential, he decides to mentor her and supports her decision to take up the mantle of Ironheart.

In Iron Man 4, audiences will see Riri take center stage as she faces off against new villains, learns to harness her abilities, and begins to carve her own path in the Marvel universe, all while carrying on Tony Stark’s legacy. The film blends legacy, mentorship, and new beginnings as Ironheart rises to join the ranks of Marvel’s next generation of heroes.