Ack is a Hairy Hooligan who appears briefly in How to Train Your Dragon, and later in How to Train Your Dragon: The Hidden World.


First Dragon War

Ack is seen partaking in the First Dragon War, defending Berk against the marauding dragons. He sees a young Hiccup trip outside during an attack when he should be inside, and wishes him a good morning.

Despite this scene shows Ack actively taking his part in defending the Village, he is seen again just a few moments later standing on a nearby bridge, sporting a quite negligent attitude, picking his ear, while the others continue battling the dragons.

Ack is later seen congratulating Stoick on Hiccup's success in Dragon Fighting, along Phlegma the Fierce.

Aftermath of the Second Dragon War

Anyone else want to try being in charge? Starkard? Ack? Mrs. Ack? [src]
  — Gobber  

According to the graphic novel, The Serpent's Heir, in the aftermath of the attack by Drago Bludvist, the Scuttleclaw Hatchlings seen in the second movie has taken up residence on Berk. Hiccup, now Chief, leaves Gobber in charge while he leaves to help the people of Nepenthe. The brood of Scuttleclaws wreaks havoc on Gobber's smithy, chewing on everything and not listening. Gobber laments for someone else to take charge, and names Ack, Mrs. Ack, and Starkard.

Search for the Hidden World

Ack appears again briefly, settling in on New Berk, and giving voice to his doubts about Hiccup's plans to find the Hidden World, saying he wants to stay on the new island, and not move away.

He appears yet again, cheering Hiccup for deciding to permanetnly settle on New Berk, and drinking mead together with Hoark, Phlegma and Spitelout.

Physical Appearance

Ack is a large built Viking that is easy to spot in battle when he takes up arms against the dragons.
  School of Dragons Website[1]  

Ack appears to be a tall, slightly older adult Viking with a white streaked blonde beard. He is missing some teeth on his lower jaw and like most Viking men on Berk, he wears the usual Viking attire and a proud Viking Helmet.


Like most men of Berk’s Viking village, he is a fighter whose energy and enthusiasm translates to unparalleled bravery on the battlefield. Despite his intensity, Ack is mindful of certain “battlefield etiquette” as he is known to stop in the midst of a conflict to courteously greet others before resuming the fight. Much like his fellow Vikings, Ack’s wild mannerisms convey his deep devotion to his kinsmen as he defends for his home and beloved leader, Stoick.
  School of Dragons Website[1]  

Ack seems to be able to switch easily between wild, aggressive battle mode to a genial non-aggressive greeting in seconds, then back again, as seen in the first movie when he knocks down Hiccup and nearly splits him in two, then smiles and says ARGGGHHHHH! Mornin'!.



ARGGGHHHHH! Mornin'! [src]
The village is throwing a party to celebrate!
Yeah, this place is real.



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