Creating legacy characters has never been the strong suit of Marvel comics, but among those who have made their mark as the future generation heroes, the

How Franklin Richards, the power cosmic and Doctor Doom's appearance in "The Fantastic Four: First Steps" credit scene affects "Avengers: Doomsday."

In Marvel Comics, Doom’s fixation on Franklin is legendary. He views the boy’s near-limitless powers as the key to creating and ruling Battleworld, a twisted reality of his own making as seen in Secret Wars.

First Steps,' Galactus is presented much like he is in the comics. He could also be the key to understanding the next phase of the Marvel multiverse.

First Steps will introduce one of the comic's mightiest characters, who Kevin Feige says has a bright MCU future.

The world is safe, the child is alive, and the Fantastic Four stands together again. In the final scene before the credits, the team prepares to return to Ted Gilbert’s talk show, where they first captured public attention. The curtain is about to rise, but the alert comes first. Duty calls. They leave before a single word is said.