When Modern Family returns on January 5, it will do so with an extra amount of attractiveness.

That's because James Marsden guest stars on "Slow Down Your Neighbors," playing a neighbor of Cam and Mitchell's who is very much welcome inside their home, as evidenced by these episode stills, provided by ABC:

Also on tap when the funniest show on television comes back in 2011:

• Claire grows determined to catch the person behind the wheel of a speeding neighborhood car.
• Phil tires to land an important listing with a difficult client.
• Jay teaches Manny, and Gloria, how to ride a bicycle.

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