These Actors Were Switched Out of Their Roles And No One Noticed

The Waltons

You probably don't remember the television show The Waltons, so you almost definitely didn't know about their casting change. Richard Thomas played the character of John-Boy, a kid who graduates from college and moves to the Big Apple to become an author. As he aged into the role, Robert Wightman replaced Richard Thomas.

The More You Know

Lady Gaga wrote “Just Dance” and “Born This Way” in just 10 minutes.
Jack Black is the son of rocket scientists.
Growing up, Katy Perry wasn't allowed to eat Lucky Charms cereal because luck was "linked to the devil." Her family also called deviled eggs "angeled eggs."
Before he was a star, Harrison Ford was a carpenter. He landed the role of Han Solo in the original Star Wars film. “I was quite surprised when I was offered the part,” Ford later said.

Post originally appeared on Upbeat News.