Dorothy Gale is the main character from the book 'The Wizard of Oz' written by L. Frank. Baum in 1900 and the movie adaptation from 1939. Dorothy lived with her Aunt Em, Uncle Henry and her precious dog Toto on a small farm in Kansas.
Dorothy is important to 'The Wizard of Oz' for many reasons for one being she is the protagonist because she is an advocate for the people she meets along the way, another one that the story wouldn't have happened without her in the first place. She is also a forthright and take charge type of person who isn't afraid of upsetting people if and when it is needed to solve a problem.
Here I have included a scene where Dorothy is using courage and strength and is standing up to the Lion, Scene here
analysis
Dorothy is a young girl who is innocent and not very worldly at the beginning of the movie but as she travels towards the Emerald City she becomes more confident and starts to believe in herself. By the end of the movie she knows she is capable of doing much more than she originally believed.