Season Six Mixes Up The Cast With The Introduction Of Jan Hooks As Carlene Frazier-dobber, The Fresh-off-the-bus Replacement For Her Sister Charlene. Julia Duffy Also Joins The Ensemble As Allison Sugarbaker, The Driven, Well-to-do Replacement For Her Departed Cousin Suzanne. While Mary Jo (annie Potts) Steps In To Take Carlene Under Her Wing, Julia (dixie Carter) And Allison Immediately Take To Butting Heads. Caught In The Middle Are Anthony (meshach Taylor) And Bernice (alice Ghostley) In What Would Be A Pivotal Season For The Series.