Mr. Murderous Pile of Yak Dung

"Well, well, well, it appears as if we have a lot to talk about doesn't it, Mister ... What was your name? Nevermind. We'll just call you Mr. Murderous Pile of Yak Dung."

- Tuffnut in "Guardians of Vanaheim"

Mr. Murderous Pile of Yak Dung is a Dragon Flyer nicknamed by the Twins in the Dragons: Race to the Edge, Season 6 episode, "Guardians of Vanaheim". He has a significant speaking part but is not specifically named in the Credits. However, the voice sounds like that of James Arnold Taylor, who is listed in the "Additional Voices" section of the credits.

Scouting for Krogan
A group of Dragon Flyers follow Heather to Vanaheim, when she goes there to visit her father's grave. She is able to make it, injured, to Berk to tell the Dragon Riders that the Flyers have discovered the location of Vanaheim. The Riders fly to Vanaheim, only to discover the Sentinels appear to all be dead and the Flyers are gone, but left behind one soldier. This soldier is interrogated by the Twins. He refuses to give his name, so Tuffnut dubs him "Mr. Murderous Pile of Yak Dung".

The Dragon Riders leave to chase down the Flyer scouts to prevent them from telling Krogan about their discovery, while Fishlegs stays behind with the Sentinels, and the Twins to watch Mr. Murderous Pile of Yak Dung. The Twins drag him off into the bushes and start asking him what it's like to be a Dragon Flyer, if he gets vacation time, and if the Flyers have healers. Mr. Murderous Pile of Yak Dung speaks easily of the perks of being a Dragon Flyer - other than the high mortality rate - and even says he has a favorite healer named Jorn. When he asks the Twins if they ever considered a "career change", they laugh at him as if the notion is ridiculous.

Later, the Twins drag Mr. Murderous Pile of Yak Dung with them into Oswald's hut as Fishlegs searches for information about the Sentinels. While partaking in the "art" of ransacking, the Flyer is able to free himself, grab a Dragon Eye lens, and escape from the hut. He jumps into nearby bushes, and suddenly screams and yells as sounds of him being torn apart and killed emanate from the bushes. A moment later, a pack of Grim Gnashers fly from the area.

Physical Appearance
Mr. Murderous Pile of Yak Dung has the same character build as Throk, but with green eyes. He also sounds like he has the same voice actor as Throk. However, the Flyer wears the typical Dragon Flyer mask and clothing, so his face is not completely visible.