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  ==TV adaptation==
  Viserys Targaryen is played by British actor Harry Lloyd in the television adaption of the books.
  Harry Lloyd on Viserys Targaryen:
  As soon as I looked into more of the history of the Targaryen family and actually read the other books, I found out more and pieced together his backstory, and he became sympathetic. I understood more what motivated him, and the fear he had, and the responsibility he had, and his childishness. I mean, he never really had a parent. That changed a lot my view from reading it to playing it.
  Lloyd on his character's death scene:
  I've never had to die on camera before, let alone in such a grisly way. So you just have to kind of give it everything. You talk to the two actors holding you and say, ‘Let's not pansy around here. I'm gonna absolutely try and get out of this, so don't let me.' Then, you let it rip. It can't be some sort of half-assed whimpering – you've got to really believe the pain and the fear. It's actually quite liberating.
  Lloyd has received positive reviews for his role as Viserys in the TV series.