|The Dark Knight|
|Interests:||Karate, Being a knight|
The Dark Knight is Sandy's ancestor that was first seen in the episode Dunces and Dragons. She works for Plankton's ancestor for a while but until SpongeBob, Patrick, and Squidly come along she decides to switch sides because SpongeBob is very good at Karate.
She goes into the castle to save Princess Pearl by telling the guards that she was going to torture SpongeBob, Patrick, and Squidly but just went up to save Princess Pearl. When the jellyfish dragon comes up The Dark Knight gets zapped by it and SpongeBob and Patrick save Pearl from being poured into the lava.
 Looks and Interests
The Dark Knight is a brown color, and she is very tall but she is revealed to be very small when she is defeated. She wears old clothes and she has lots of face protection. She has boots and has lots of armor around her. The Dark Knight wears gloves and she carries a dangerous weapon. It is revealed when she is defeated that she then had a passion for karate, and that she loves it more since SpongeBob and Patrick went back in time! (Sorta)
- Unlike Sandy, she is not wearing a helmet which does not make sense at all because the Dark Knight is a land creature.
- Her name is a parody of Batman who is also referred to as the Dark Knight.