Speedifist is a young Viking from the How to Train Your Dragon book series.
- "Like his friend Tuffnut, Speedifist is an excellent Warrior-in-Training, very skilled and strong at fighting. He is also the fastest runner in the Tribe. Speedifist and Tuffnut are firm friends – although they are also very competitive, so they can waste time fighting each other rather than the enemy. Tuffnut Junior and Speedifist will follow Snotlout’s lead, but if Snotlout gets too bossy both boys can get rebellious. Speedifist’s Riding-Dragon is a Swiftglider, as fast and as quick as its rider. Speedifist’s hunting dragon is also an Eaglefly."
- ―Official Book series Website
Speedifist is one of the Hairy Hooligan Novice Vikings. Though his experiences were not discussed in Book 1, Speedifist evidently grabbed an Eaglefly from the Dragon Nursery, to train as a Hunting dragon.
Dealing with the Green Death
Speedifist, along with all the other initiates of the Hairy Hooligan Tribe and Meathead Tribe were exiled for failing the Final Initiation Test on Thor'sday Thursday. A violent storm washes several Seadragonus Giganticus Maximus ashore on the Isle of Berk. Speedifist and the other initiates carry out a plan Hiccup concocted to pit the Green Death against the Purple Death by dropping feather bombs on the dragons and hurling insults at them. Ultimately, the two dragons kill each other, but not before the Green Death seeks revenge on Hiccup.
'Swordfighting at Sea' Lessons
When a 'Swordfighting at Sea' lesson is interrupted by a mysterious coffin running into the ship, the ship sinks and all the novices must swim to shore. They wash up on the Long Beach, along with the coffin. Gobber ordersWartihog, Bearhug, Sharpknife, and Clueless to carry the coffin back to Hooligan village. Just after they set off toward the village, Snotlout unsheathes his sword, called the Flashcut, and shows it off and threatens Hiccup with it. Speedifist sees the swords and is amazed by it.
- "Wow," breathed Speedifist. "The latest Double-Sided Extra-Biting Supa-Sword. Curving inner edges, silverpoint finish ... where did you get THAT from, Snotlout?""
- ―Speedifist in Book 2
Speedifist is notably the only Viking in the Book series with a darker complexion. He is described as being fast and strong, so he may have a muscular body. He has helmet with four straight horns.