Turtle Princess

Turtle Princess is a princess who is also the head of a library in Ooo.

She first appears in a brief cameo appearance in "What is Life?" when she was seen in Ice King's Imagination Zone.

She is seen again in "Loyalty to the King" as one of the many princesses who is interested in the Nice King (Ice King). However, he doesn't want to marry her, so on her way out Nice King (Ice King) tells Finn and Jake to tell her she's been rejected.

In "The Real You," she is at the library Finn and Jake go to so they can prepare for PB's science barbecue. She is later mentioned in conjunction to the library in Holly Jolly Secrets Part I, when one of Ice King's confessionals mentions that an attempt to take her both lead to Finn and Jake stopping him and having his library card revoked.

In "Paper Pete", Turtle Princess is constantly trying to keep control of Finn's volume in the library as he tries to help the Pagelings defeat the Moldo. She ultimately confronts Finn, but is embarrased to see him take off his shirt. It is not clear if Turtle Princess knew Finn was taking off the shirt as a peace offering for the Moldo and Pagelings.

Appearence
Turtle Princess looks like a turtle with long yellow hair. She has a crown similar to that of Princess Bubblegum and Slime Princess, but with a green gem. She has a very deep voice(although she sports a much higher voice in "The Real You"). She also has a dark green shell and a brownish greenish skin.

Trivia

 * Her tiara resembles Princess Bubblegum's, whose tiara has the ability to block the telepathic power of The Lich. It is unknown if Turtle Princess's has a similar ability.
 * She was the first princess to note that the cage in "Loyalty to the King" was like a prison, so she may be smarter than other princesses. Furthermore, she appears to be the head librarian in Ooo's library.
 * She is Andy Ristaino's favorite princess.
 * She is one of the few if not the only princess with a second job. This could perhaps be tied to the Turtle People's domain being the library, thus making her their leader as the librarian.
 * How Turtle Princess has a low voice and a high voice spoofs the Canadian TV series Carl2 in which Carl's clone has a higher voice than Carl.