Considine's Viserys was incredibly powerful, tragic, and human, and deserved to walk away with some recognition (especially as, unlike most of the other cast members, he won't get another chance).

Source: https://screenrant.com/house-of-the-dragon-game-thrones-fewest-emmys-record/

His successor, Viserys (), stood no chance of holding the kingdom together.

Source: https://collider.com/game-of-thrones-king-jaehaerys-targaryen/

Ser Arryk and his twin brother, Ser Erryk Cargyll were members of King Viserys' Kingsguard.

Source: https://gamerant.com/house-of-the-dragon-characters-likeliest-die-season-2/

Under the manipulative eyes of his grandfather, Otto Hightower, Aegon II ends up seizing the Iron Throne upon the death of King Viserys I in the Season 1 finale.

Source: https://www.cbr.com/who-kills-rhaenyra-targaryen-house-of-the-dragon/

Viserys dies in his sleep at the age of 52. After his death, his second wife, Alicent, and her sons scheme to keep Rhaenyra off the throne, leading to a deadly civil war known as the Dance of the Dragons.

Source: https://www.popsugar.com/entertainment/westeros-kings-queens-48895348