The ninth and final season of “How I Met Your Mother” is starting to sound intense! Two more episode titles from the coming season of the hit CBS television series have leaked online, and they sound like they will be pretty legen -- wait for it -- dary.

The titles of the first four episodes of the ninth season had already hit the Web, and now the titles of episodes five and six are following suit thanks to SpoilerTV. Bearing in mind the titles could always change, the lineup for the fall is as follows:

Episode 1 -- “The Locket”

Episode 2 -- “Coming Back”

Episode 3 -- “The Broken Code”

Episode 4 -- “Last Time In New York”

Episode 5 -- “The Poker Game”

Episode 6 -- “No Questions Asked”

While “How I Met Your Mother” fans will have to continue patiently waiting for descriptions of the episodes, the creators and cast members have been leaking information about what to expect.

“How I Met Your Mother” co-creators Carter Bays and Craig Thomas have been Twitter-happy since filming began July 10. Bays recently asked the Twitterverse:

Sounds to us as if Barney’s and Robin’s wedding cake could potentially be meeting an unfortunate fate.

Meanwhile, Thomas tweeted this interesting photograph and caption:

So far, fans of the long-running series know that a couple of familiar faces will be returning for guest spots, along with some new ones. Wayne Brady, who has previously guest-starred as James, Barney’s brother, will be returning this year. The actor tweeted early this month that viewers will be getting to see “a little more James this season.” Similarly, “The View” talk-show host Sherri Shepherd will also be guest-starring in the season premiere as a woman named Daphne. Daphne will have a run-in with Marshall on a plane, and his “erratic behavior” will lead to them both getting escorted off before takeoff. Ellie Kemper, formerly a star of “The Office,” was also recently cast in a guest role. The actress will be playing Cassie, a guest at Barney’s and Robin’s wedding. Bays and Thomas described the character of Cassie as “one of the most attractive, available, and -- as Ted discovers -- unfortunate guests.”

Ellen D. Williams, who played Robin’s arch-nemesis Patrice, will also be showing up during “the longest wedding weekend ever.” Thanks to Williams’ Twitter account, fans found out Friday that the show has gained another new guest star: Melissa Tang of the new series “The Goodwin Games.” No word on who Tang will be playing, but there is a tweeted photo of her on set:

“How I Met Your Mother” returns for its ninth and final season on Sept. 23 with a special hourlong premiere. What do you think of the new episode titles and casting scoop? Let us know in the comments section.

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