Sarah Paulson was named Outstanding Lead Actress In A Limited Series Or A Movie for her portrayal of prosecutor Marcia Clark, who accompanied the star to the Emmys as her date for the night, while Courtney B. Vance beat co-star Cuba Gooding, Jr. to take the Outstanding Lead Actor honour for his role as Simpson defence attorney Johnnie Cochran.
Sterling K. Brown was also celebrated as Outstanding Supporting Actor, as was writer D.V. DeVincentis.
Game of Thrones, based on the hit fantasy books by George R. R. Martin, was another big winner, landing Outstanding Drama Series, Outstanding Directing for a Drama Series, and Outstanding Writing for a Drama Series
However its castmembers lost out on the acting accolades, which went to Rami Malek (Mr. Robot), Tatiana Maslany (Orphan Black), Ben Mendelsohn (Bloodline), and Dame Maggie Smith (Downton Abbey).
Meanwhile, Veep held on to the Outstanding Comedy Series title for a second consecutive year, and its star Julia Louis-Dreyfus scored her fifth consecutive win for Outstanding Lead Actress. The victory was a bittersweet one for the former Seinfeld star, who tearfully dedicated the prize to her father William, who died on Friday, 16 September, aged 84.
Jeffrey Tambor was named Outstanding Lead Actor again for Transparent, after previously winning the 2015 award.
There were also special tributes from Tambor to his late pal Garry Shandling, and from Henry Winkler, who remembered his Happy Days creator Garry Marshall, before the ceremony's annual In Memoriam segment, which also honoured stars like David Bowie, Alan Rickman, Gene Wilder, Prince, Muhammad Ali, Patty Duke, Anton Yelchin, Doris Roberts, Natalie Cole, Merle Haggard, and Glenn Frey, who have all died in the past year.