Hogwarts: Founders Era - The Dark King

Disclaimer: I own nothing from this video.

Hogwarts: Founders Era - The Dark King

Salazar Slytherin:

Asa Butterfield (Merlin BBC)
Jonathan Rhys Meyers (The Tudors)

Sources:

Chronicles of Narnia: Voyage of the Dawn Treader
Harry Potter and the Sorcerer's Stone
Harry Potter and the Chamber of Secrets
Harry Potter and the Prisoner of Azkaban
Harry Potter and the Goblet of Fire
Harry Potter and the Order of the Phoenix
Harry Potter and the Half-Blood Prince
Harry Potter and the Deathly Hallows
Merlin BBC
Pirates of the Caribbean: At World's End
Red Riding Hood
Snow White and the Huntsman
The Lord of the Rings: Two Towers
The Lord of the Rings: Return of the King
The Tudors

Music:

Bring Me To Life (by Katherine Jenkins)