(CNN) -- Way to stick it to the undead.
When the nominations for the 63rd Annual Primetime Emmy Awards were announced Thursday morning, conspicuously missing from the list for best outstanding drama series were fan favorites "The Walking Dead" and "True Blood."
Despite critical acclaim and rabid fan bases, the pair did not join nominees "Mad Men," "Boardwalk Empire," "The Good Wife," "Friday Night Lights," "Dexter" and "Game of Thrones" in that category.
Another show that received a heavy drumbeat of praise from critics but no best drama nomination was AMC's new crime/mystery series "The Killing."
One of the "The Killing's" stars, Michelle Forbes, viewed the lack of the nomination as more of a reflection of the abundance of quality television shows on the air now, as opposed to a commentary on the quality of her series.
"I think that it was so highly competitive in that category," said Forbes, who was recognized for her role as Mitch Larsen, the no-nonsense mother of the show's murder victim, with a nomination for outstanding supporting actress for a drama series. "This truly is the golden age of television. There were just so many shows to choose from, and there are only so many nominations."
"The Killing" did fare better in other categories: Mireille Enos was nominated for outstanding lead actress in a drama series, and the show also grabbed nominations for outstanding writing, directing, casting and single-camera picture editing.
And despite "The Walking Dead" and "The Killing" being snubbed in the major drama category, AMC shows garnered 29 nominations in total.
Likewise, HBO scored a whopping 104 nominations. But that didn't help writer/producer David Simon, for whom it was like yesteryear as his acclaimed drama "Treme" was again overlooked for best drama series. This is sure to stir up fans of his critically acclaimed "The Wire," who still have not come to grips with that series being both shunned and off the air.
Actress Kyra Sedgwick won last year for outstanding lead actress in a drama series for her role as Deputy Chief Brenda Leigh Johnson on TNT's "The Closer," while this year, she wasn't even nominated.
Things also weren't so funny for some of the actors eligible in the comedy categories. Not only are "Glee's" Lea Michele and Cory Monteith off the hit show after next season, neither received an Emmy nomination.
Michele's lack of appearance in the lead actress in a comedy category might come as a shock to fans, as she was nominated last year for her portrayal of hell-bent-on-becoming-a-star high school student Rachel Berry and considered a strong contender this year.
Also not making the cut this time around was "Glee" co-star Matthew Morrison, who had previously been nominated for outstanding actor in a comedy. Two of his fellow cast members, Jane Lynch and Chris Colfer, were nominated for outstanding supporting actress and actor in a comedy series, respectively.
Colfer told Entertainment Weekly that "There were rumors that I might get nominated again, but I was thinking I wouldn't."
"It was a surprise," he said. "I think there is so much anxiety that comes with awards shows and nominations, and I was focusing on all the bad. The category is so so tough, so selective, that I didn't think I'd get another nomination."
Colfer's category included all of the other actors from ABC's "Modern Family" and Jon Cryer from "Two and a Half Men," while none of the actors from two fan and critic's favorites -- "Parks and Recreation" and "Community" -- received nods.
Neil Patrick Harris from "How I Met Your Mother" has been having a heck of a year, with a gig hosting The Tony awards, but he was also not included in this category.
Another surprise proved to be a show that may have been expected to be snubbed, but wasn't.
"The Kennedys," a controversial miniseries that almost didn't make it to air, received 10 nominations, including outstanding miniseries or a movie, outstanding lead actor in a miniseries or a movie for Greg Kinnear and Barry Pepper, and outstanding supporting actor in a miniseries or a movie for Tom Wilkinson.
The series was initially slated to appear on The History Channel but was pulled because of historical inaccuracies. Parent network A&E Television said the "dramatic interpretation is not a fit for the History brand."
"The Kennedys" was picked up by ReelzChannel, which Thursday announced that it will re-air the eight-part miniseries over eight nights starting November 6.
The 63rd Annual Primetime Emmy Awards will air on September 18 on the Fox network.