The Shattered King is the eighteenth episode of Trollhunters.
The heroes' search for the second Triumbric Stone takes them deep into . unfamiliar marshlands. Claire asks Jim to be her dance partner.
While Jim and Toby search for dates to the Spring Dance, the team searches for the second Triumbric Stone in the marshlands of the Quagawumps, where Toby is mistaken for their lost king.
- 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!!!
- Ike Amadi as Angor Rot
- Grey Griffin as Wumpa
- Frank Welker as Fragwa
- Lauren Tom as Mary Wang
- Victor Raider-Wexler as Vendel
- Thomas F. Wilson as Coach Lawrence
- Blinky references Orlando's amusement parks such as Disney World and Universal Studios while he and the gang go into the Marshlands.
- First appearance of Quagawumps.
- Claire gains a new weapon known as the Shadow Staff in this episode.
- Error: When Blinky reveals he has been perusing the books at Arcadia Oaks High, he notes "I exhausted all of Trollmarket's resources pertaining to the mysterious mark Angor Rot painted on your forehead." While the Mark of Angor Rot was painted on a portion of Jim's forehead, it was visible throughout the right side of Jim's face.
- Jim and Claire share their first near-kiss, before being interrupted by Blungo.
- It is revealed that Toby's favorite musical is Rodgers' and Hammerstein's The King and I.
- AAARRRGGHH!!! is revealed to have been cut by Angor Rot's Creeper's Sun blade during the climax of the episode.