Bad Coffee is the forty-second episode of Trollhunters and the third episode of Part Three.

Official Synopsis

Something strange is brewing at school, where the teachers are more agitated than usual. Claire's illness shows disturbing side effects.


Strickler gives Jim some magic dust that makes anyone who inhales it more feral and aggressive. When Jim accidentally spills some into the teacher's coffee, the teachers start to go on a rampage and it's up to Jim, Toby, Steve, and Eli to stop them.




  • Steve and Lawrence start to bond in this episode, which is the very thing that cures Lawrence of his feral curse. 
  • Emile Hirsch provides much of Jim's dialogue in this episode.
    • Anton Yelchin's dialogue is present during Jim's first scene in the episode, in which he is introduced to Gravesand by Stricklander and Nomura. Upon inhaling the substance, it affects Jim's voice, and Hirsch voices Jim for the remainder of the episode (and the series itself). Strickler subtly lampshades the changes by saying, "Some of the changes are permanent." 
  • This episode takes place a week before "Beetle Mania" in the timeline.


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Part One
"Becoming: Part 1"- "Becoming: Part 2"- "Wherefore Art Thou, Trollhunter?"- "Gnome Your Enemy"- "Waka Chaka!"- "Win Lose or Draal"- "To Catch a Changeling"- "Adventures in Trollsitting"- "Bittersweet Sixteen"- "Young Atlas"- "Recipe for Disaster"- "Claire and Present Danger"- "The Battle of Two Bridges"- "Return of the Trollhunter"- "Mudslinging"- "Roaming Fees May Apply"- "Blinky's Day Out"- "The Shattered King"- "Airheads"- "Where Is My Mind?"- "Party Monster"- "It's About Time"- "Wingmen"- "Angor Management"- "A Night to Remember"- "Something Rotten This Way Comes"
Part Two
"Escape from the Darklands"- "Skullcrusher"- "Grand Theft Otto"- "KanjigAAARRRGGHH!!!"- "Homecoming"- "Hiss Hiss, Bang Bang"- "Hero with a Thousand Faces"- "Just Add Water"- "Creepslayerz"- "The Reckless Club"- "Unbecoming"- "Mistrial and Error"- "In the Hall of the Gumm-Gumm King"
Part Three
"Night Patroll"- "Arcadia's Most Wanted"- "Bad Coffee"- "So I'm Dating a Sorceress"- "The Exorcism of Claire Nuñez"- "Parental Guidance"- "The Oath"- "For the Glory of Merlin"- "In Good Hands"- "A House Divided"- "Jimhunters"- "The Eternal Knight: Part 1"- "The Eternal Knight: Part 2"
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