Tsar Lunar XII, known as the Man in the Moon or simply "MiM", is the overarching protagonist of DreamWorks' 25th full-length animated feature film Rise of the Guardians. He was the very first Guardian who lives on the moon and protects the dreams of all children. In the movie, he is shown to be a silent, but active, observer of the transpiring events. He is the one who convinces the four Guardians that Pitch's return is a true threat, and the one who chooses Jack Frost to be the newest Guardian to aid them.
Although he never actually speaks, he can communicate through the shining of the moon's light, and is frequently spoken to by other characters. Pitch considers him an "old friend", North refers to him as "Manny", and Jack often asks him who he (Jack) is, and why he was chosen. He is only ever represented in the movie as the moon itself.