Cyclopes

The Cyclopes were gigantic one eyed monsters. The most famous is Polyphemus, the Cyclops blinded by Odysseus. Hesiod mentions only three (not a race or tribe): Arges (thunderbolt), Steropes (lightning), and Brontes (thunder), obviously storm gods.They were born to Gaea and Uranus. They were also the first smiths. When Cronus came to power he imprisoned the Cyclopes in Tartarus.

Dragons

Dragons are legendary creatures, typically with serpentine or otherwise reptilian traits, that feature in the myths of worldwide cultures.
The two most familiar interpretations of dragons are European dragons, derived from various European folk traditions, and the unrelated Oriental dragons, such as the Chinese dragon (lóng 龍 or 龙).
Dragons are usually shown in modern times with a body like a huge lizard, or a snake with two pairs of lizard-type legs, and able to emit fire from their mouths. The European dragon has bat-type wings growing from its back.

Demons

In religin, folklore and mythology a demon (or daemon, dæmon, daimon) is a supernatural being that is generally described as a malevolent spirit. In Christian terms, demons are generally understood as fallen angels, formerly of God. A demon is frequently depicted as a force that may be conjured and insecurely controlled. The "good" demon in recent use is largely a literary device, though references to good demons can be found in Hesiod and Shakespeare.

Zombies

A zombie is a creature that appears in folklore and popular culture typically as a reanimated corpse or a mindless human being. Stories of zombies originated in the Afro-Caribbean spiritual belief system of Vodou, which told of the people being controlled as laborers by a powerful sorcerer.

Giants

The mythology and legends of many different cultures include monsters of human appearance but prodigious size and strength. "Giant" is the English word commonly used for such beings, derived from one of the most famed examples: the gigantes (of Greek mythology).
In various Indo-European mythologies, gigantic people are featured as primeval creatures associated with chaos and the wild nature, and they are frequently in conflict with the gods.

Werewolves

Werewolves are mythological or folkloric humans with the ability to shift shape into wolves or anthropomorphic wolf-like creatures, either purposely, by being bitten or scratched by another werewolf, or after being placed under a curse. This transformation is often associated with the appearance of the full moon.
Werewolves are often granted extra-human strength and senses, far beyond those of both wolves or men. The werewolf is generally held as a European character, although its lore spread through the world in later times.

Vampires

Vampires, in folklore and mythological context, are reanimate corpses that are feeding with blood. The legends say that vampires can not stay in the light. Their skin is very white, they have very sharp canines and they may be lost among the people (only at night). When they change status, their eyes become phosphorescence. Once they have got to drink blood, they can't stop, and generally play with the prey before eating. They live hundreds of years, they're immortal and they have cold skin and blood.