Watch Merlin series free. Merlin is a British adventure fantasy series that follows the young wizard named Merlin as he arrives in the kingdom of Camelot after his mother arranges for him to stay with the court physician, Gaius. Soon he discovers that he is destined to protect the son of Uther named Arthur who is known to bring forth a great kingdom. Stars Colin Morgan, Bradley James, Angel Coulby, Katie McGrath, Anthony Head and Richard Wilson.
