It's officially a wrap for the cast and crew of How I Met Your Mother as shooting finishes up on the series finale episode, but fans can still look forward to plenty of laughs in the last few episodes.

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Several guest stars from the past have either been confirmed or rumored to be appearing in the last few episodes of the show, including Pretty Little Liars star Lucy Hale and Alyson Hannigan and Cobie Smulders' real-life husbands, Alexis Denisof and Taran Killiam.

Hollywood Hills reports that Hale will be returning in the role of Robin's younger sister Katie in the next episode, titled Vesuvius, which will see Robin and Lily fight, as well as Barney's indecision over a suit to wear to his wedding.

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Killiam could reprise his role as Marshall and Barney's GNB co-worker Gary Blauman two weeks later in an episode titled after the character, though his appearance has not been confirmed.

Denisof however, appears to have confirmed that his character Sandy Rivers, who has been Robin's co-anchor and boss at World Wide News, will appear in the series finale, as he tweeted a photo of the character on Feb. 26, saying his goodbyes to the series.

"BTW all you HIMYM fans, I said goodbye to Sandy Rivers today. Thanks for having me back @CarterBays et al," he wrote.

Meanwhile, several of the other series stars have officially wrapped shooting according to their twitter feeds, including Cobie Smulders, Alyson Hannigan and Neil Patrick Harris.

"That's a wrap for @CobieSmulders and @alydenisof-both amazing, talented and above all, kind...we love you! #HIMYM," show co-creator Craig Thomas tweeted Feb. 28.

Hannigan also confirmed she had finished shooting as well, tweeting "I am officially wrapped from How I Met Your Mother!!! It has been a true pleasure to be a part of this family. Thankyouthankyouthankyou!!!"

Neil Patrick Harris meanwhile, also wrapped scenes on Feb. 26, tweeting "I just uttered my last word as Barney "Awesomepants" Stinson today. Nine years. Man, time sure flies when you're having fun...".

How I Met Your Mother airs Mondays at 8 p.m. on CBS.


Tags: How I Met Your Mother CBS television