Tom Hiddleston's Thank You Letter to Joss Whedon for Role in 'Avengers'
Description:To say Tom Hiddleston was happy to play Loki in 'The Avengers' would be a huge understatement. Turns out the actor was absolutely thrilled to have a part in the Marvel blockbuster. In a new book titled 'Joss Whedon: The Biography', fans get to read a letter from Hiddleston that proves just how pumped he was to take on the role. In the first part of the letter, Hiddleston writes to Whedon "I am so excited I can hardly speak."(0:51)