Smaug

Smaug was the main antagonist of The Hobbit: The Desolation of Smaug and a minor antagonist in The Hobbit: An Unexpected Journey and The Hobbit: The Battle of the Five Armies.

It is presumed by the third age, Smaug was the last of his kind, as there were no other dragons seen in Middle Earth.

He is voiced by Benedict Cumberbatch.

Early life
It is unknown when Smaug was born, but he was first sighted in TA 2770. One day, he heard of a great treasure residing in the dwarven kingdom of Erebor and went to attack the city. Girion, the Lord of the City Dale at the time, fired a Black Arrow after Black Arrow but missed. However, unknown to Girion he had been able to loosen a scale under Smaug's left wing, but the dwarves would dismiss it as a fairy tale and nothing more.

Etymology
The name Smaug is derived from the past tense of the primitive Germanic verb smugan ("to squeeze through a hole").The name is associated with smeag (as in Smeagol), which is a form of the Old English smygel ("to burrow")

In Dalish, his name was Tragu