Reap ("Ravana "in the Ramayana)

Reap, ten-headed king of the giants from the kingdom of Lanka, is a deamon , servant of destructive god Shiva.
His sister Surpanakha tried to seduce Pheah Ream.
Preah Lak punished her by shaving her head.
In revenge, Surpanakha fuelled Reap's hatred for Preah Ream by making him fall in love with Neang Seda.

Hanuman

Hanuman, white monkey and son of the god of the wind whose nimbleness and speed he inherited, became general of the monkeys'army.
Said to be immortal, he is a brave, strong and intelligent vassal to Preah Ream. Together they fight Reap, kill him and deliver Neang Seda.

The Reamker ( or Khmer Ramayana)

The Reamker is Khmer version of the Ramayana, a Sanskrit epic from ancient India.
The tale is depicted on Angkor Wat bas-reliefs.
The epic tells the life of Preah Ream, his exile from the throne, the abduction of his wife Neang Seda by Reap, the ensuing war and his reconquest of the throne.

Preah Ream ( Rama in the Ramayana)

Preah Ream is the seventh incarnation of Vishnu, from whom he inherited perfection, might and kindness.
He is destined to kill the deamon Reap.
Ousted from his father's throne that should have been his by right, Preah Ream exiled himself into the wilderness with Neng Seda and Preah Lak.