The Botwins may be fleeing Mexico, but they won't be leaving the past entirely behind when Weeds returns to Showtime on August 16.

Michael Ausiello has confirmed that both Jennifer Jason Leigh and Alanis Morissette will reprise their roles - as Nancy's sister and her baby doctor/Andy's girlfriend - on the upcoming sixth season of the show.

Look for the former to appear in one episode, while the latter sticks around for a pair.

Multiple sources have reported that the Botwins will settle in Seattle this summer, with Nancy bedding a bartender plays by Mark-Paul Gosselaar in at least one episode.

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