It looks like Canadian cutie Rachel McAdams may join the Iron Man cast. Cinemablend is reporting that the role of Virginia “Pepper” Potts, an executive secretary to Tony Stark, a.k.a. Iron Man, has been offered to McAdams. McAdams is a perfect fit for the Pepper character, and her addition to the cast will make the movie that much harder to miss seeing. Rachel McAdams, Famke Janssen, Robert Downey JR, and Terrence Howard all in the same movie? Jon Favreau has huge hit in his hands.