A new castmate has been added to the list for 30 Rock‘s sixth season: James Marsden, who most recently appeared on TV with Modern Family. Also, Denise Richards will be appearing on one episode.

According to The Hollywood Reporter, details on which character Marsden will play are unknown at this time. However, it is known that James Marsden will appear in six episodes of the series.

Meanwhile Denise Richards will also be appearing on one episode. She announced it on her Twitter page.

So far, then, we know that the original cast will be back, with Will Arnett in tow, and James Marsden and Denise Richards to guest star.

Could season six get here any faster, please?