But Amazon was not the streaming platform with the most wins this year - that honor goes to Netflix.
The Emmy Awards, broadcast live on Monday on NBC, handed their top prizes to cable and streaming shows, with HBO's "Game of Thrones" and Amazon's "The Marvelous Mrs. Maisel" winning the best drama and comedy series statuettes, respectively.
The field bested by Foy included last year's victor Elisabeth Moss for "The Handmaid's Tale" and Sandra Oh of "Killing Eve", who would have been the first actor of Asian descent to get a top drama award.
GoT won nine Emmys this year, meaning the blood-spattered cinematic tale of noble families vying for the Iron Throne - which returns in 2019 for an abbreviated eighth and final season - now has 47 awards overall.
And last year's "SNL" champs Alec Baldwin and Kate McKinnon were felled by Henry Winkler ("Barry") and Alex Borstein ("The Marvelous Mrs. Maisel").
The Creative Arts Emmy Awards were presented September 8 and 9.
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Best Drama Actress switched from Elisabeth Moss ("The Handmaid's Tale") to Claire Foy ("The Crown").
"One of the things I love the most about this show.it's about a woman who is finding her voice anew", Ms. Brosnahan said.
Other big winners included "The Assassination of Gianni Versace", for best limited series and actor Darren Criss, who played the gay serial killer who murdered the Italian designer in Miami in 1997.
Yet the warmest applause came when Glenn Weiss used his acceptance speech for directing the televised 2018 Academy Awards show to propose to his girlfriend in the audience, Jan Svendsen. Though I guess you could call that rubber-stamping too since it was King's third win in four years - without a doubt this new voting system has been especially kind to the veteran actress.
We made a graphic to show how all the networks compared in Emmy wins.