It's hard to imagine it's been over 40 years since single mom, Ann Romano, moved out on her own with her two daughters.
Franklin's portrayal of the determined, divorced mother, Ann Romano, made her both an unforgettably brilliant and groundbreaking TV mom in the '70s and '80's.
Franklin landed several Emmy nominations and two Golden Globes for her role on the show. After it stopped airing in 1984, she went on to act in a number of plays and guest-star on several television series, but none of those roles brought as much recognition as the cheeky, independent mother she played on One Day. Unfortunately, Franklin passed away after a battle with cancer in March 2013.
At only 15, a young Bertinelli took on the role of the cooperative, good-girl daughter, Barbara Cooper, often keeping the peace between her sister and her mother.
These days, Bertinelli is spending her days on a different set, cooking up family-inspired favorites on her show . Since One Day, Bertinelli has been a spokeswoman for the Jenny Craig weight-loss program and played a starring role on TV Land's Hot in Cleveland.
Born to musician, John Phillips, of the American folk-rock group, The Mama's and the Papa's, 16-year-old Phillips was just breaking out into her own stardom when she joined the cast as the rebellious older daughter, Julie Cooper.
After settling her own troubled past with addiction, Phillips is now spending her days at the .
Harrington stole the show as the building's quirky superintendent, Dwayne Schneider, providing some comic relief with his usually unwanted advice and frequent unannounced visits to the Romano's apartment.
Taking a break from his early days as a voice, stage, and television actor, Harrington only guest appeared on a handful of TV shows after One Day called it quits in 1984. However, he is best known for his role as Schneider, winning a Golden Globe and an Emmy for it. Harrington sadly passed away at the age of 86 in January 2016.
Fabray played Grandma Katherine Romano, joining the cast during the fourth season after leaving her husband and coming to live with Ann and the girls. Fun fact: The renowned actress started out as a vaudeville singer, eventually attending Juilliard and becoming a broadway star. She even won a Tony Award for her leading actress work in the musical, Love Life.
After One Day, Fabray is probably best known for picking up more roles as the mother of main characters in shows such as The Mary Tyler Moore Show and Coach. Most recently, she appeared in The Damsel Dialogues in 2007.