Karen

"I'd like to speak to the manager please."

"This is the manager, ma'am."

"Okay, then I'd like to file a complaint, sir."

"Is this you again, Karen? I told you to stop calling here!"

-Karen in a conversation with Keith Pandars, Ep. 498 to Ep. 501

Karen is the third antagonist character of The Shortest Video on YouTube and is Rylo's sister. She has a reputation of one of the most mysterious characters in the series.

Appearance
She is a rhino with a black dress, red slippers, and blonde hair. Like Rylo, she is a grey rhino, has no ears, and a horn in the place where her nose should be.

Trivia

 * Her animated model was designed in Photoshop as was all of the characters’ animated models.
 * Her name was revealed in Episode 501. She was known as "Rylo's Sister" prior to the reveal of her name.
 * Her name is most likely a reference to the internet term "Karen".
 * Karen is voiced by soon-to-be-acclaimed voice actress, Harper Paige.