Elizabeth "Eliza" Thornberry is the main character of The Wild Thornberrys. She is the second daughter to Sir Nigel and Marianne Thornberry and sister to Debbie Thornberry. She also has an adopted brother named Donnie. She is an cute and lovely 12 year old tomboy who enjoys adventures. Her natural curiosity means she often misjudges a situation and lands her in sticky situations. However, she has the ability to talk to animals, the ability that gave her a best friend in the form of Darwin.