- Not to be confused with Little Brothers.
In the first movie, Little Brother was Mulan's dog that helped her out with the chores. In a rather weird way, he would get them done. He also disturbs Mulan's father, who was praying. During the end of the movie, he joined Mulan's ancestors' ghosts at the party along with the chickens.
In the second movie, Little Brother watches Mulan training in the field. As a musical number is played, Little Brother plays with the little girls as they learn how to fight.
Little Brother makes a small cameo in Tarzan when several gorillas gather around Archimedes Q. Porter and shake him upside down, causing many items to fall from inside his pockets, one of them resembling Little Brother.
- Little Brother's voice actor, Chris Sanders, also voiced Stitch in the Lilo & Stitch franchise.
- Little Brother is the third dog to be owned by a Disney Princess, with Cinderella's dog Bruno being the first and Pocahontas' dog Percy (in the sequel) being the second.
- The name "Little Brother" is possibly a reference to Mulan having a little brother in the original Ballad of Mulan. Aptly enough, Mulan may have named her dog this because she considers him her adoptive "brother."
- Although Little Brother never appeared in the 2020 remake, the scene where a young Mulan chases a chicken across the village pays homage to the scene where Mulan tells Little Brother to feed the chickens across the village.