 He was also part of the Obie Award-winning cast of "A House Remembered".They returned to Chicago in 1967 to rejoin Sills, Sheldon Patinkin, Bernie Sahlins and Joyce Sloane in forming Second City Repertory and then Story Theatre.Piven, charismatic, balding and bearded, with a beautifully resonant voice, spent some time as an acting teacher at Northwestern University, offering his expertise in improvisation as well as his peculiarly sage view of life, combining a respect for zen and the torah.