Pepper Potts actor Gwyneth Paltrow looks back on her seven-movie MCU journey. Gwyneth Paltrow's Pepper Potts is one of the first characters ever introduced in the Marvel Cinematic Universe. Pepper made her MCU debut in Iron Man, after which she appeared in Iron Man 2, The Avengers, Iron Man 3, Spider-Man: Homecoming, Avengers: Infinity War, and Avengers: Endgame.