Rory McCann (born 24 April 1969) is a Scottish actor and musician, best known for portraying Sandor "The Hound" Clegane on the HBO series Game of Thrones and Lurch in Edgar Wright's crime-comedy Hot Fuzz.\n\nWho is the actor that plays the hound?
A step-by-step solution is:
Rory McCann
The relevant sentence in the passage is: Rory McCann (born 24 April 1969) is a Scottish actor and musician, best known for portraying Sandor "The Hound" Clegane on the HBO series Game of Thrones and Lurch in Edgar Wright's crime-comedy Hot Fuzz.

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The final answer: Rory McCann