Benioff: “It was one of the harder death calls we had to make. Relatively speaking, he’s a minor character if you look at his screen time. The fact that Littlefinger looms so large when people talk about the show, and when we think about the show, it’s really a credit to Aidan. Every scene he’s in manages to make you think about Littlefinger. And when he’s at the center of a scene — like his final scene in the finale — he’s completely mesmerizing. We’ve had a lot of death scenes on this show and this is one of the great ones. Diana Rigg [as Olenna Tyrell] was so true to her character in the end, and Littlefinger was so true to his character — in his own cowardly, horrible way.”
Part of course:
Game of Thrones showrunners explain Littlefinger's finale death (EW)
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