10 Walking Dead Facts That Will Blow Your Mind..

Judith Grimes is played by twins 

In a practice otherwise known as Olson twinning, the actress who plays Rick’s daughter Judith is portrayed by twin girls much like the Olson twins on Full House before them, except less horrifying if you can believe it.

This is a common Hollywood practice in order to ensure that you can always have another baby on hand just in case the other one begins to cry or gets too tired to perform her scenes (baby actors can be such prima donnas sometimes).