Rashida Jones and Rob Lowe will depart the NBC comedy in the 13th episode of the upcoming sixth season, showrunner Mike Schur confirmed in a statement.
"We've been working on their story line (on and off) for four seasons now, and heading into this year, with the two of them contemplating parenthood, it felt like a natural time to move them into the next phase," he said.
"We absolutely love both Rashida and Rob, and will be sad to see them go," Schur said. "Rashida was one of the very first people we knew we wanted in the cast, and as important as Ann is to Leslie (and vice-versa), she'll certainly never be far from Pawnee. Rob we initially thought we could only have for six or eight episodes, and we couldn't be happier that he will have stuck around for 75."
"They are wonderful, funny, committed actors, they've been a huge part of the 'Parks and Rec' family, and we think we have a great Pawnee send-off in the works for them.”
Season six of "Parks and Recreation" kicks off on September 26.