Alanis Morissette, Weeds

Jennifer Jason Leigh and Alanis Morissette are coming back for Season 6 of Weeds, a Showtime rep says.

Weeds recruits Terminator star Linda Hamilton

Leigh (Margot at the Wedding), who played Nancy's sister, will appear in one episode, while Morissette will return for two episodes as Nancy's gynecologist and Andy's girlfriend.

Entertainment Weekly first reported the news.

Linda Hamilton and Mark-Paul Gosselaar are also set to guest-star this season, which premieres Aug. 16.

Mark-Paul Gosselaar lands Weeds guest spot

Beginning in September, you can watch episodes of Weeds on TV Guide Network.