who played the grandmother on one day at a time
One Day at a Time Michael Lembeck joined the series as Julie's husband, Max, in the fifth season, but he was written out as a consequence of Phillips' firing. (But later returned in Season 7 along with Philips) A steady stream of regulars was added in the ensuing seasons, including Ron Rifkin as Ann's boyfriend, Nick; Glenn Scarpelli as Nick's son, Alex; and Boyd Gaines as Barbara's boyfriend, later husband, Mark. Shelley Fabares, who'd previously guest starred as Ann's rival co-worker Francine Webster, appeared more frequently, eventually becoming a regular. Nanette Fabray, who played Ann's mother, also made more frequent appearances before becoming a regular cast member in the final season. Howard Hesseman joined the series for a short time as Mark's father, Sam, who would become Ann's second husband.