Doctor Princess

Dr. Princess is a medical official of Ooo, originally appearing in "The Chamber of Frozen Blades."

Dr. Princess was performing a checkup on Gunter at the Rock People's hospital. While Gunter was "blowing up" (giving birth to an egg), Ice King told her that he was a widower; she asked how his wife died, to which he responds, "Oh, is that what that means?" Off screen, the Ice King kidnapped her and stuffed her in his gym bag. At the end of "The Chamber of Frozen Blades," Jake helped her out of the gym bag. She checked on Gunter's egg and witnessed it hatch.

She reappears near the end of "Mortal Recoil," assisting Dr. Ice Cream and Nurse Poundcake in reassembling Princess Bubblegum a second time after her body is released by The Lich.

Appearance and disguise
She wears tinted glasses, a red-jewel pendant over her forehead, a pair of low-heel brown shoes, and a doctor coat with an orange, long-sleeved turtleneck dress underneath. She has greenish skin with a few freckles on her cheeks, and her brown hair is in pigtails. She has a small pink Scientific Parasite in her left pocket, much like the one Dr. Ice Cream has.

Science Whyzard
Science Whyzard, a potential contestant of the Wizard Battle, was confirmed by Andy Ristaino to be Dr. Princess in disguise. As Science Whyzard, she approached the arena carrying scientific paraphernalia. She left the competition without entering after the Grand Master Wizard declared "no science."

Her appearance resembles Dr. Princess except for a white lab coat that leads up her neck and encompasses her face, along with her hair bun. She is also wearing large blue goggles with navy low heel shoes.

Quotes
"What am I looking at here exactly?"

"Whoa nelly! Something medical is happening!"

"Allow me to fill in that one. The Ice King abducted me while I was distracted by the horrifying beauty of birth."

Trivia

 * Dr. Princess states that she is not really a princess ("Princess is just her surname").
 * Just like Dr. Ice Cream and Finn as a doctor, she has a small Scientific Parasite in her pocket.
 * She is Pendleton Ward's favorite doctor.
 * She has a fairly calm demeanor, as she had shown no fear nor anger when the Ice King abducted her, and she showed little anxiety when she and the other doctors were reassembling Princess Bubblegum.
 * Although she is not actually a princess, she appears in "Princess Monster Wife" as one of the princesses who lost a body part, showing that even though she is not a princess, the Ice King is still attracted to her.
 * It is unknown how she survived for most of the episode since Ice King took her heart and intestines.
 * She makes a cameo appearance in the episode "Princess Cookie," in the Candy Kingdon's mental hospital, where she told Jake where the Cookie was.