Mini Queen

Mini Queen is a character who appears in "His Hero". She is, as her name suggests, a tiny insect queen. She cannot speak loud or clear enough for people to understand, but can write notes using her antennae. In "His Hero", she is inexplicably abducted by the Swamp Giant, being kept amidst the mushrooms on his head before she is rescued. She leaves Finn a note asking him to call her before leaving his care. Billy claims that she is "already kidnapped by another monster" or "probably dead," but this seems unlikely as he has little basis for this and turned out wrong on the same subject later. Mini Queen rules "Littleland" which has not been seen in the series.

Trivia

 * Mini Queen is the fourth character in the show to have "Queen" in their full name, after Marceline, Gary, and Lumpy Space Mom, who can be classified as a queen, as her daughter is Lumpy Space Princess.
 * Mini Queen is yet another person of nobility to have a crush on Finn.
 * She was originally called Tiny Princess, which explains why she was seen in Ice King's Imagination Zone in "What is Life?"