<Li> Dick Martin - playing sociology professor Dr. Ben Littmeyer </Li> <Ul> <Li> Roseanne Barr - playing Dick's forced - wife Janet </Li> <Li> Leigh McCloskey - playing Matthew, a yoga instructor </Li> <Li> Elaine Stritch - (seasons 3 & 6) playing Martha Albright, Mary's mother </Li> <Li> George Grizzard - (seasons 3 & 4) playing George Albright, Mary's Father </Li> <Li> Cindy Crawford - playing Mascha, a Venusian woman </Li> <Li> Angie Everhart - playing Chloe, A Venusian woman dating Tommy </Li> <Li> Dom DeLuise - playing the father of Dick's student Bug </Li> <Li> Peter DeLuise - playing Franky </Li> <Li> John Cleese - (seasons 3 & 6) playing Professor Liam Neesam, a hostile alien </Li> <Li> Sam Lloyd - playing Eddie, a man Dick helps . </Li> </Ul> <Li> Roseanne Barr - playing Dick's forced - wife Janet </Li> <Li> Leigh McCloskey - playing Matthew, a yoga instructor </Li>

Who played janet in 3rd rock from the sun