Airheads is the nineteenth episode of Trollhunters.
Toby and Claire take on a Trollhunter task so Jim can win a Spring King challenge. In the process, they learn to master new weapons.
While Jim is competing against Steve and Eli for king of the Spring Fling, Claire and Toby have to deliver a package to Bagdwella's sister, Sagdwella, who lives underneath a trailer park in "Oo-tah", while competing for the title of Jim’s trusty sidekick. When Toby sneaks a peek, it turns out to be a magic curse that breaks gravity. Moral of the story: DO NOT. OPEN. THE BOX!
- Kelsey Grammer as Blinky
- Anton Yelchin as Jim Lake Jr.
- Charlie Saxton as Toby Domzalski
- Lexi Medrano as Claire Nuñez
- Jonathan Hyde as Mr. Strickler
- Fred Tatasciore as AAARRRGGHH!!!/Bagdwella
- Tom Kenny as Officer Brennan
- Amy Landecker as Barbara Lake
- Laraine Newman as Miss Janeth
- James Purefoy as Kanjigar
- Cole Sand as Eli Pepperjack
- Yara Shahidi as Darci
- Lauren Tom as Mary Wang
- Matthew Waterson as Draal
- Victor Raider-Wexler as Vendel
- Thomas F. Wilson as Coach Lawrence
- Bebe Wood as Shannon
- Jimmie Wood as NotEnrique
- Steven Yeun as Steve Palchuk
- Toby gets a new weapon, a Warhammer, in this episode (which holds the Gravity Curse, giving his hammer the ability to switch between super light and super heavy).
- Continuity Error: Claire is shown as being in health class at the same time that Toby was in his math class. However, Toby has previously been shown to be in Claire's health class. Also, Mary, Logan, and Seamus are shown as being in both classes.
- Getting Crap Past the Radar: It is shown that Steve drank multiple energy drinks in order to keep up his stamina for the Touch-A-Truckathon. When questioned about his need to use the bathroom, he says that he "[has] it covered" (by wearing a diaper). This is mentioned, prodded and lampshaded for the rest of the episode.
- Getting Crap Past the Radar: Toby openly claims he is sexually declined to the whole class and Miss Janeth clearly did not approve it.
- Getting Crap Past the Radar: Claire was able to get out of class to help Toby with the gravity curse by telling Coach Lawrence that she was having "girl problems" (i.e. menstruating).