Pitch Black

Pitch Black is the villain in Rise of the Guardians and is usually the Big Four's main opponent in most AUs. He is the embodiment of fear itself and fights a constant battle with the Guardians to extinguish children's belief and therefore their power. It is widely accepted that the Big Four's destiny is to defeat or destroy Pitch.

Physical appearance
Pitch is tall, lithe, and dark in appearance. He has silver - golden yellow eyes, dull pale-gray skin, and glossy black hair that is styled to come out as slick spikes from the back of his head. He wears a long black robe, obscuring his body like a shadow. Underneath the robe, he wears black pants and black shoes.

Personality
Pitch has always been jealous that the Guardians are believed in and praised by children all over the world, and this has turned him bitter. He had considerable power in the Dark Ages, but once the Guardians came along, his power decreased until nearly everyone had stopped believing or fearing in the Boogeyman. Pitch is cunning and manipulative. While he is not physically threatening, he uses more sublte and unnerving tactics to scare Guardians and children alike, preferring to deliver circling speeches. A glimpse of his vulnerability is seen, however, when he asks Jack Frost to join him in his shadowy crusade, and is genuinely hurt by Jack's refusal. He assumed that Jack would show sympathy for his position--both invisible outcasts and shunned by the world. Pitch's ultimate goal is to control the world and to plunge it into a darkness that he will reign over.

Powers and Abilities
Pitch has various shadow powers, such as traversing great distances through shadows, become a shadow, and affect the physical world by interacting with other shadows. He can create Nightmares shaped as dark horses with glowing golden eyes. He has his own version of the Sandman's dreamsand, but Pitch's sand is black and induces bad dreams. He can corrupt Sandy's dream sand as well as any pleasant dream a child is having, turning those dreams themselves into nightmares. Pitch also has the ability to morph his black sand into weapons such as a scythe or an arrow. For the purposes of the crossover, Pitch also has the ability to control or corrupt others (which usually results in a change in the physical appearance of the victim).

Role in the Crossover
Pitch is the main antagonist in the Rise of the Brave Tangled Dragons crossover, if the AU happens to include conflict. The Big Four are usually chosen to battle against him and grapple with him both physically and mentally. Pitch often tries to corrupt Hiccup, Merida, and/or Rapunzel in order to crush Jack or get him on his side.

Relationships
Jack Frost -- Pitch and Jack are actually very similar. If Jack had made different choices before becoming a Guardian, he could have very well ended up like Pitch. Pitch knows this, and he constantly tries to bargain and blackmail to get Jack on his side. Pitch sees Jack as the biggest threat, since Jack's powers are enough to match and even defeat Pitch. He will usually try and use his powers to control the other members of the Big Four in hopes that he can threaten Jack with them or convince him to join Pitch.

Rapunzel -- Pitch sees Rapunzel as a weak link in the Big Four that is easily broken. Since she has close relationships with the other characters (usually Jack Frost), Pitch exploits these feelings and blackmails the others by threatening her or controlling her. There isn't much Rapunzel can do to protect herself from him, and she often ends up the victim of his attacks. However, in several instances, Rapunzel uses the power of her hair to heal those that have been hurt by him.

Merida -- Merida has an iron resolve, which is enormously helpful when she has to face Pitch. She uses her arrows against his own and defends her friends with a fierce passion that Pitch finds hard to overcome. Merida sometimes has difficulty standing against Mor'du, which is often a creation of Pitch in the crossover.

Hiccup -- Pitch enjoys preying on Hiccup's self-doubts and this usually comes in the form of threatening Merida or Toothless. Hiccup is shown as being more prone to mental attacks from Pitch, but will still valiantly stand against him, fighting Pitch's powers with Toothless' strength and fire. He is second only to Jack when in aerial combat with Pitch.