3. Anthony Head (Uatu The Watcher)
Not so much for his suitability for the role - although Head could pull most things off - but more for the in-joke of him playing a Watcher again (following his role as Rupert Giles in
Buffy the Vampire Slayer), Anthony Head would make for a very cool Uatu the Watcher. Head can effortlessly play the wise figure who is there to guide the lesser experienced characters and this is exactly what is required in Uatu the Watcher - a member of an ancient race known as the Watchers who possesses vast cosmic and psionic abilities. The problem is, Head would most likely be cast by Joss Whedon, but Uatu is mostly associated with the Fantastic Four - a movie franchise with which Whedon is not associated - having attempted to prevent the Silver Surfer from bringing the planet-devourer Galactus to Earth. Therefore, the likelihood of this ever happening is quite minor, but it's a cool thought nonetheless and one that would go down very well. Of course, Head
has actually appeared in a Marvel movie before - having played Benedict the monk in
Ghost Rider: Spirit of Vengeance - but his appearance was brief and the movie was utterly terrible.