Vihra is an energetic and curious girl, who prefers action and adventures to beautiful dresses. She has inherited some of her Zmei father’s abilities but she still hasn’t learned to control them.

Her hair is a cloud, which changes with her mood – it’s fluffy and clear blue when she’s calm, and darker, with little lightnings in it when she’s angry.

She has grown up in Khan where humans and spirits co-exist peacefully. As the daughter of the two leading town figures, she’s used to attending social events and tries to be as classy and knowledgeable as her mother but is better at being outdoors, where her father teaches her to throw lightnings and tells her funny stories about spirits.

Vihra is curious, headstrong and very determined, which sometimes gets her in trouble. In the beginning of the series, she is also pompous and slightly naive, because of the way she was treated in Khan. Still, she is very kind hearted and believes that both spirits and people should co-exist peacefully next to each other.

Bran is a 16-year-old boy from the mountain town of Kukerovo. It is a place where the forest spirits are aggressive, so all his life he has believed all spirits are evil.

Even though he is the older of two brothers, Bran is small for his age. To compensate, he is overenergetic, very loud and impulsive – a real hurricane. He often gets in trouble and his younger brother Vlad has to help him.

Bran dreams of being a great warrior. Together with his brother Vlad he’s studying and training to become a Kuker warrior, so that he can fight the evil spirits using magic steps and bells (Chans).

Vlad is the younger of the two Kuker brothers. He is big and very strong, which has made him a bit slow, lumbering and very careful not to break anything. Vlad is very calm, gentle and very polite. He speaks little and with a hint of good-natured sarcasm. For him knowledge is the greatest power and books are sacred, so he is constantly reading, even when walking.

Although timid and shy, when Vlad puts on his Kuker costume and enters a battle – he becomes a confident and skilled warrior. He knows the Kuker guide by heart and often cites it to his impulsive brother Bran.

Tina-Pakostina is Vihra’s best friend. She is a 15-year-old Samodiva nymph, who is mischievous, very talkative and likes playing jokes. Tina belongs to a conservative Samodiva tribe from the forest near the town of Khan, but she is curious about the world outside her forest so every chance she gets, she sneaks out in search of adventures with Vihra.

As a samodiva nymph, she can influence nature around herself trough her song and dance. Tina is also a healer. She knows all the plants and their properties and can mix all sorts of potions.

Tina is quite feminine and cares greatly about her appearance. When she moves about, she floats above the ground – although she occasionally experiments with walking and complains about it.

The sheep from Kuber mountain are born with wool of unique and colourful patterns. This is due to the high concentration of forest spirits in the region, who ramble and roam freely around their pastures.

The Sheep (Harry) is the comic relief character of the series. Throughout the season, we will see him at random moments somewhere near our characters – always munching away on something, always completely casual and uninterested in the events taking place in the story. He often overcomes obstacles faced earlier by our characters with unparalleled cool and ease.

The Greycloaks are a group of mercenaries of various tribes – people who have left their land after they used up all the resources in it and practically turned it into a wasteland. They believe this was because of the spirits living there, and so they hate spirits with a passion and hunt them down wherever they go.

The goal of their horde is to find a new place to settle down, and they are slowly moving towards Kuber Mountain, where the golden apple is. On their way, they aggressively try to push out the native inhabitants off the lands they live on, and enslave all spirits they encounter. The Greycloaks are the main antagonists of season one.

It is widely known that after a prolonged conflict in a place called Eagle Mountain, the Greycloaks set ablaze the entire mountain and all the forests, out of frustration from the resistance of the people and spirits there. The blaze turned Eagle Mountain into scorched earth and nothing lives there now.

Kukerovo is Vlad and Bran’s hometown. It is one of the few towns and villages located in a secluded valley, vastly populated by aggressive forest spirits – nightmares, talasumi and ills, to name a few. However, Kukerovo is also home to the Kuker – a clan of specially trained fighters who use their special suits and bells (Chans) to scare, fend off or fight the various spirits around the settlements.

Each of the different towns in the valley has a different Kuker clan, with different traditions and different types of Kuker, but the biggest town in the area is Kukerovo.

Kukerovo also holds and guards The Kuker Guide. It is a huge, very old book, containing hundreds of recipes, designs and detailed information on how to create the special Kuker bells, which the Kuker use to fight spirits.

The Kuker Guide is a huge, very old book, containing hundreds of recipes, designs and detailed information on how to create the special Kuker bells, which the Kuker use to fight spirits.

Each spell of the Kuker is cast by making a selection of steps and sounds with the Kuker bells, unique to that spell. The different “spells” of the Kuker have various effects on the spirits, most of which are aimed at scaring or intimidating them. However, the more powerful spirits are not affected by these moves, so the Kuker are also trained to fight them using more complex dances and various specialised weapons.

Each class of Kuker is aimed at a different class of spirit, as different spirits have immunity to different bells. Only the oldest and most experienced Kuker elders – the Babuger, can battle with any type of spirit. The different types of Kuker in Kukerovo and the surrounding cities and villages protect all the residents in the cities and the field workers, and also escort convoys in and out of the area. They very rarely leave their valley, and never trust spirits.