Emma Stone and Paul Rudd Drop By NBC’s Thursday Comedies

The popular film performers will guest star on "30 Rock" and "Parks and Recreation," respectively.

Blair Marnellby Blair Marnell

This Thursday, NBC's popular comedy line up will welcome "30 Rock" back into the fold. And later this month, a number of guest stars will make special appearances in the third episode of "30 Rock's" sixth season.

According to Entertainment Weekly, the January 26th episode of "30 Rock" will find Jenna Maroney (Jane Krakowski) cast in the next star filled holiday themed film: "Martin Luther King Day." And to further the apparent parody of "New Year's Eve" and "Valentine's Day," Emma Stone will make a cameo appearance as Jenna's costar, alongside Andy Samberg ("Saturday Night Live") and Nick Cannon ("Up All Night").

Other "30 Rock" guest stars lined up for the sixth season include James Marsden, Mary Steenburgen, Will Arnett, Kelsey Grammer, Kristen Schaal and Denise Richards, who leads the "idiots" offended by Tracy Jordan (Tracy Morgan) during his apology for a gay slur.

More intriguingly, Vulture is reporting that Paul Rudd has signed on to appear in "Parks and Recreation" as the man running against Leslie Knope (Amy Poehler) for city counsel in Pawnee. And considering that Leslie was last seen trailing in the polls at a mere 1%, there's a good possibility that Rudd will appear in more than just a single episode.

Although Rudd is better known for appearing in films like "I Love You, Man" and "Role Models," he had a recurring role on NBC's "Friends" from 2002 to 2004.

However, it seems clear that Leslie will spend most of her time butting heads with Katherine Hahn ("Free Agent"), who will "play an adviser to one of Leslie's rivals."

What are your thoughts on the latest casting for NBC's comedy series? Who would you like to see guest star on these shows? Share your opinions in the comment section below!