Matthew Modine will be joining the cast of the Showtime series Weeds when the program returns for its third season on August 13 (the second season ended last October). Modine will appear in ten episodes of the fifteen-episode season as Sullivan Groff, a land developer for a Christian mega-church.

I've been a fan of Modine since Full Metal Jacket, so it'll be nice to see him as a regular on Weeds. He's appeared on television before, most recently in The Bedford Diaries and in roles on The West Wing and Law & Order: SVU.

Zooey Deschanel and Carrie Fisher will also make cameo appearances in the third season.