Who’s who in ‘House of the Dragon’? Here’s our list of the key character

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"Game of Thrones" introduced viewers to the different houses, small and large which populate the lands within 

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And around Westeros beginning at those of the Targaryens, Starks, Baratheons and Lannister

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It is set almost 200 years prior to that of most popular show, "House of the Dragon,"" which premieres on Sunday on HBO shows the distant ancestors of famous houses, 

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and introduces viewers to clans that are less well-known as they move in the Seven Kingdoms' seat of power and The Iron Throne.

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From House Targaryen Viserys Targaryen (Paddy Considine)

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From House Targaryen Daemon Targaryen (Matt Smith)

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From House Targaryen Rhaenyra Targaryen (young: Milly Alcock, adult: Emma D’Arcy)

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From House Targaryen Rhaenys Targaryen (Eve Best)

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From House Hightower Otto Hightower (Rhys Ifans)

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From House Hightower Alicent Hightower (young: Emily Carey, adult: Olivia Cooke)

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House Velaryon Corlys Velaryon (Steve Toussaint)