Unlike other trolls, half-trolls appear more humanoid with human characteristics, like two opposite hands being troll and human-like. They also possess large horns, sharp fangs, and small pointy ears, as well as different colored stone for skin pigment. While most trolls have koala-like noses, half-trolls' noses are slightly more human, only more flatter.
One of the most human features half-trolls possess is that their blood is naturally red, which differs them to changelings, who have purple blood.
Half-Trolls mostly live the same as any ordinary troll. Although given that they're also half-human, they could most likely have a tendency to live on their own in many ways that trolls and humans normally do or don't.
Powers & Abilities
As stated by Merlin, half-trolls are capable of performing feats beyond that of an average human and troll. They are noticeably stronger and faster, have more superior senses of smell and sight, are capable of jumping/leaping from long distances, and react much faster when in the face of danger.
Half-Trolls are also completely different from Changelings, as pointed out by Strickler. While changelings can switch from fully troll to fully human, half-trolls are neither; so he claims that it is highly unlikely if half-trolls could [ever] possess the ability to choose one form or the other.
Once the user uses the potion to turn into a half-troll, the spell doesn't wear off and there is no possible way to reverse the effects as they are to remain like this for the rest of their lives, which Merlin (as far as he knows) admits.
When transformed, half-trolls may have a lot of trouble adjusting to their trollish half. As described by Strickler, it is very confusing/difficult to handle the emotions of both human and troll at once.
Like all trolls, they are vulnerable to sunlight and will burn, but it's unknown if they turn to stone from long exposure, due to being not entirely troll. They can no longer eat human food, instead crave other things such as metal, wood, and other materials.
|Appearances in the Trilogy|
- It's currently unknown if there were/are any other half-trolls besides Jim.
- So far, the only known way to become half-troll is to bath in a special elixir.
- It's unknown if it's possible to be naturally born a half-troll since Jim was magically created to become one.