The How I Met Your Mother guest-starring list continues to grow.

Amanda Peet will appear on a January episode of the sitcom. The actress was recently seen in the movie 2012 and last starred on the small screen in the short-lived series Studio 60 on the Sunset Strip.

On the installment, titled "Jenkins," Peet will portray a co-worker of Marshall's.

She's one of a number of big names set to appear on the sitcom, as Chris Elliot will appear on this week's episode; and Rachel Bilson, Tim Gunn and Stacy Keibler are slated for the 100th installment in January.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.