In a 1982 arc by John Byrne, Franklin gets frustrated trying to solve a Rubik’s Cube and uses his powers to age himself into an adult body, though he couldn’t actually gain more emotional maturity. He winds up going back to being a kid, placing restrictions on his own abilities to allow him to have something of a normal childhood.

This story discusses major plot developments, including the ending and post-credits scenes, in "The Fantastic Four: First Steps," currently playing in theaters. From the very first scene, the question of what will become of the child of Reed Richards (Pedro Pascal) and Sue Storm (Vanessa Kirby) looms over "The Fantastic Four: First Steps.

First Steps, features Franklin Richards. Director Matt Shakman wanted to show the impact of a child on the family. Franklin is a powerful mutant in the comics. The stars are excited to explore this family dynamic.

Franklin Richards isn't just another superhero offspring; he's one of the most powerful characters ever created in the Marvel Universe.

First Steps introduces plenty of characters to the MCU, but its strongest one isn't Galactus or Franklin Richards.

In their MCU debut, the Fantastic Four become a Fantastic Five with the arrival of Reed and Sue's son, Franklin Richards. Worries that he might not be "normal" are confirmed in Fantastic Four: First Steps when Galactus recognises that the boy can wield an unlimited energy known as the Power Cosmic (presumably because of the "cosmically compromised DNA" shared by both of his parents).

The Fantastic Four First Steps is the 37th film in the MCU ... Doctor Doom appears in the living room of the Baxter Building right next to Franklin Richards. Now, seeing as though Doom has his hood up the entire time and does not speak, we don’t know ...

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