BoBoiBoy Quake retains much of Earth's persona, being the closest to BoBoiBoy's original personality. Like Earth, he is serious and mature, focused on the task at hand. He is generally seen as the 'leader' of the elements.
BoBoiBoy Ice has a similar personality to Water, being a calm and relaxed, albeit slightly lazy individual. Though Ice does not show much of the lazy characteristics and can be seen focusing on the task at hand.
But Boboiboy Glacier was an elemental fusion of Quake and Ice. 

| 🪨🧊 |Calm and relaxed but serious and mature

Hali had a messy short hair, dark brown hair with white streak on his right. He had blood red eyes, he always wear black and red clothes. He always had that easy-temper.

🌶️❗🚨⚡ | • Aggressive + silent + easily angered

Nari the demi-god of the Eternal Nature. 
Skrael the demi-god of the North Wind.
Bellroc the demi-god of the Keeper Flame.
Morgana the human of the Shadow Portal. 
These are the things who protected Earth billions of years.

|•| "Who are you...?" |•|

The Arcane Order was named Skrael, Bellroc and Nari. Those who were protecting the Earth for billions of years. But now and after, they were planning to destroy the Earth and make a new planet for them.
The Trollhunters who destined to be kill the Arcane Order with the only one Trollhunter, the amulet chooses Jim. The one and last. 

Trollhunters: Tales of Arcadia Arcane Order 

Skrael is one of the three secondary antagonists (alongside Gunmar and King Arthur) of the Tales of Arcadia franchise. He serves as an unseen antagonist in the first installment Trollhunters and the second installment 3Below, a major antagonist in the third installment Wizards, and the secondary antagonist of the fourth and final installment Trollhunters: Rise of the Titans. He is also an unseen antagonist in Trollhunters: Defenders of Arcadia. He's in his human form.