14. The Ten Rings in Iron Man
In the first Iron Man movie, the Ten Rings appear as a terrorist organization, making threats and even kidnapping Tony Stark himself. The Ten Rings are a nod to the Mandarin, an infamous Marvel villain known for foiling the Avengers time and time again. Unfortunately, he was reduced to a comical role, played by Ben Kingsley, so MCU fans likely don’t take him as a serious threat anymore for the future. However, it goes to show that the writers know how to incorporate the same evil agencies throughout several of their movies.