|"Adventure Time 4: The Revenge of the Dark Princess"|
| Season Movie, Episode 4|
| Written &|
"Adventure Time 3: Heaven or Hell?"
"Adventure Time 5: The Psyhco Returns"
When Dark Princess threatens an attack on the Nightosphere for Hunson to give up his title as the Lord of Evil to her, Finn and Jake plan to stop her, not knowing that she had also had plans for Marsha as well.
- Dark Wolves
- Dark Princess
- Hunson Abadeer
- Jeremy Shada as Finn the Human
- John DiMaggio as Jake the Dog
- Mathison Chicetawn as Marsha
- Brit McKillip as Dark Princess
- Martin Olson as Hunson Abadeer
- I Will Not Bow - Sung by Mathison;opening theme
- Mean Evil Princess from Dark Kingdom - Sung by Dark Princess
- Last One Standing - sung by Mathison; final battle music and ending theme
- This is the second time Dark Princess seeks revenge in the movies. The first was Friendship is Magic.
- One of the artwork peices for The Revenge of the Dark Princess is similar to a scene in the opening sequence of Sonic Adventure 2.
- This is the first time Marsha is seen chilling out in the sun.
- The part where Marsha is chilling out in the sun on a beach chair is similar to what Sonic did during Sonic the Hedgehog: The Movie.