"The Secret Life of Walter Mitty" is a fictional character created by author James Thurber. Although people may use the term "Walter Mitty" colloquially to refer to someone who daydreams or escapes reality, in reality, there is no real person named Walter Mitty to be treated in any particular way.

Walter Mitty was a character in a film titled The Secret Life of Walter Mitty. The film was released in 1947 and starred comedian Danny Kaye as the title character.

Walter Mitty is a fictional character, played brilliantly in a movie, by Danny Kaye. Mitty was the quintessential Mr. Milquetoast. The one who wouldn't say 'boo' to a mouse. But in his dreams - ah! - that was a whole different world. In his dreams he was stronger than Superman, wiser than Solomon, handsomer than Clark Gable, funnier than Bob Newhart - well, you get the idea.So a Walter Mitty complex is the man who lives in a fantasy world, because his real world is so devoid of accomplishment, of positive reinforcement and, usually, of love.

Mrs. Mitty is a dynamic character in James Thurber's story "The Secret Life of Walter Mitty." Throughout the story, she shows growth and change, particularly in her interactions with Walter and her assertiveness in dealing with him.

The dynamic character in "The Secret Life of Walter Mitty" is Walter Mitty himself. Throughout the story, he goes from being lost in his daydreams to becoming assertive and courageous in the face of real-life challenges, showcasing growth and development.