Why is the cartoon guy with a big forehead popular?

It could be a funny cartoon character designed to be unique and stand out with that feature.

Maybe it's because of his unique look or funny personality that attracts people.

A big forehead on a cartoon guy can make him look unique and maybe a bit comical. It might draw attention and give him a distinct appearance.

Well, it might be a character from a children's cartoon designed to be distinct and catch the viewers' attention. Or it could be part of an experimental animation with unconventional designs.

Maybe it's a unique character design choice to make her stand out or give her a distinct look.

One popular big forehead cartoon character is SpongeBob SquarePants. His big forehead is part of his unique look and adds to his charm.

Maybe it's a character from a specific cartoon. But I'm not sure exactly who it is without more context.

Well, there are various types. Some comedy cartoons might have such a character for comical effect.

Maybe it's just a unique character design choice to make her stand out.

Maybe it's because the character designs or storylines of existing cartoon guys aren't appealing enough to catch people's attention.