If you've seen any of the many, many Marvel movies released in recent years, you know to watch out for a cameo from Stan Lee. The comics legend - who turns 94 today - created or co-created Marvel characters like Spider-Man, the Hulk, the Fantastic Four, Iron Man and more. As such, he's become something like a good luck charm for Marvel's Cinematic Universe. Check out all of his Marvel cameos below.

And as a bonus - check out Stan Lee on "The Simpsons", as he stops into the Android's Dungeon.