38. Khal Drogo

At first, the Dothraki warrior was menacing. But over the course of the first season, as he began to bond and build a real love with Dany, he became more likeable.

Time of death: Season 1, episode 10, "Fire and Blood"

Cause of death: Dany suffocated him in a mercy killing after a spell by Mirri Maz Duur left him in a catatonic state.

Sadness ranking: 4.5. At this point we were pretty invested in Dany and Drogo. The saddest part about his death was saying goodbye to Jason Mamoa, whose performance made him famous, and probably won him the role of Aquaman in 2017's "Justice League."