How I Met Your Mother Season 9 spoilers have so far revealed a lot about the CBS comedy's final season. Barney (Neil Patrick Harris) and Robin (Cobie Smulders) are seen in a video teaser talking about someone who's going to ruin their wedding. Who could it be? Meanwhile, HIMYM fans will see more of Cristin Milioti, the actress playing the titular mother role.

"The Locket" and "Coming Back" are the back-to-back titles of the hour-long How I Met Your Mother Season 9 premiere. Guests appearing on this HIMYM farewell kick-off are Sherri Shepherd ("The View"), Roger Bart ("Desperate Housewives"), and one of the fans top favourite recurring guests, Wayne Brady ("Let's Make a Deal").

SpoilerTV reported Lily (Alyson Hannigan) will be seen confronting Ted Mosby (Josh Radnor) about finally - and really - letting go of Robin Scherbatsky. This is reflected in the How I Met Your Mother Season 9 trailer on YouTube. Lily tackles Ted when he's about to speak to Robin. (Scroll down to play the video).

HIMYM 9: The Wedding Jinx and The Perfect Mrs Mosby

In another HIMYM spoiler, Wayne's James Stinson makes a divorce-related announcement. This switches on the panic button for Barney and Robin. It also brings to two (Ted and James) the number of characters who could ruin the big Season 9 wedding. How things develop is expected to be hilarious, sweet, and sentimental all at once.

The How I Met Your Mother Season 9 premiere is highly anticipated for several reasons. One, this is the final season of the CBS show. Two, Cristin Milioti, who plays the titular mother is now part of the regular cast. During the SDCC (Comic-Con) 2013, Neil Patrick Harris said Cristin and Josh show a wonderful on-screen chemistry. Fans couldn't wait to see the sparks fly for real for Ted Mosby - finally.

Entertainment Weekly scored a must-see fun video featuring HIMYM's newbie, Cristin Milioti. Follow this link to see the interview. Check out the slideshow for cute photos featuring Josh, Cristin, and the rest of the legendary HIMYM gang.

Back in How I Met Your Mother Season 1 finale, Ted Mosby (Josh) says the following line: "I don't want perfect. I want Robin." Future Ted (Bob Saget) side-quips: "Sometimes, even when you know something's a mistake. You gotta make it anyway." This is the finale episode in which Ted Mosby ditches a Love Solutions date to be with Robin. Fans are likely to see this connected to the show's farewell season.

How I Met Your Mother Season 9 premieres with an hour-long show on Sept. 23 (Monday). And so the bittersweet HIMYM goodbye begins!

VIDEO: How I Met Your Mother Season 9 Sneak Peek (YouTube Trailer)

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