From 1975 to 1978, she played the title character in the CBC Television children's show Coming Up Rosie.
In 1980 and 1981, Radcliffe toured Canada with two revivals of the venerable revue Spring Thaw.
In 1982, Skin Deep, the musical show she composed (libretto written by Nika Rylski) won the Eric Harvie award for best new Canadian musical and was presented for the summer on the main stage at the Charlottetown Festival.
Radcliffe spent a season starring as Tina, the King of Kensington's sweetheart, playing opposite Al Waxman on the popular CBLT television series.
Radcliffe originated the role of the disillusioned wife and mother in Ken Finkleman's Married Life (nominated for an ensemble Genie award), and played the fragmented "Mom" in Bill Robertson's movie The Events Leading Up to My Death, a role Now Magazine pronounced "brilliantly played".