Night of the Were-Diesel is the sixth episode of Season 2 of Best Friends Whenever and the twenty-fourth overall. It aired on October 2, 2016 to 1.36 million viewers.


When Cyd tries to protect Diesel from Barry’s wolf serum experiment, she accidentally gets the serum on herself and turns into a menacing werewolf. Now Shelby must try and figure out how to get her best friend back before the she-wolf destroys their high school’s Halloween carnival And Haunts the School.


Main Cast

Memorable Quotes



  • This is a Halloween themed episode.
  • This is the second Halloween themed episode of the series, first being, Cyd & Shelby's Haunted Escape.
  • This is the first new episode to air after a 2 month hiatus.
  • Similarly, a Monstober episode of KC Undercover, All Howls Eve also featured a wolf serum that did something similar and made Ernie act like a werewolf.
  • This is the first episode with no recurring or guest characters.

International Premieres

  • December 26, 2016 (Israel)
  • December 31, 2016 (Latin America, Brazil)


Monstober 2016 - Best Friends Whenever - Week Of Premieres

Monstober 2016 - Best Friends Whenever - Week Of Premieres


To view the Night of the Were-Diesel gallery, click here.


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