The 47-year-old actor says the artistes treat their exit like just another professional decision and look forward to other jobs, reported Men's Health magazine.
"There have been some dinners, but when you follow a show and you love the characters and they die, it becomes a big deal because you've invested in these people. When you work on something, and especially as an actor, and especially when you've done this for as long as Diana (Rigg) has, that's just the nature of what you do.
In the ongoing seventh season of "GOT", Coster-Waldau's Jaime Lannister offered a peaceful end to Rigg's character, Lady Olenna Tyrell, by allowing her to drink poison.
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