In the How to Train Your Dragon book series, several minor and major characters are in the Pirate Training Program. There is a total of twelve vikings that are consistently mentioned as being part of this program. The only exception is the first book, where only ten vikings were mentioned, although it can be argued that these ten vikings were part of the Dragon Initiation Program and not the Pirate Training Program, as the latter wasn't mentioned at all in the first book. They are:
- Hiccup Horrendous Haddock III
- Fishlegs
- Snotface Snotlout
- Dogsbreath the Duhbrain
- Speedifist
- Tuffnut Jr.
- Clueless
- Bearhug
- Sharpknife
- Oikish
They are all characters from the book, but they aren't mentioned very much.
Dragons
To be part of the Pirate Training Programme one must have passed the viking initiation, where the youngsters must steal and train a baby dragon. The dragons that these vikings have are:
| Dragon | Name | Trainer |
|---|---|---|
| Seadragonus Giganticus Maximus | Toothless | Hiccup |
| Gronckle | Seaslug | Dogsbreath |
| Basic Brown | Horrorcow | Fishlegs |
| Monstrous Nightmare | Fireworm | Snotlout |
| Gronckle | Unknown | Wartihog |
| Eaglefly | Unknown | Speedifist |
| Lackwit | Unknown | Clueless |
| Eaglefly | Unknown | Tuffnut Jr. |
Other dragons that are trained by vikings in the programme are:
- Forktail
- Snakeheart
- Bogflyer
Their species or trainers are unknown.
Riding dragons
As part of the programme young vikings also receive their first riding dragon. At first these dragons are young and their wings weak and unable to fly. The dragons each viking got are:
| Dragon | Trainer |
|---|---|
| Windwalker | Hiccup |
| Chickenpoxer* | Fishlegs |
| Devilish Dervish | Snotlout |
| Marsh Tiger | Wartihog |
| Swiftglider | Speedifist |
| Dimbruiser | Clueless |
| Rocket Ripper | Tuffnut Jr. |
*Fishlegs later reunites with his mother's dragon, a Deadly Shadow which becomes his riding dragon.