Which rock star appeared on Highlander: The Series?

The answer is: Joan Jett. Joan Jett appeared in season one as Felicia Martins, an immortal who tricks Duncan into training her only so she can take his head.Her attempt fails, but Duncan spares her life. She swears she'll meet him again, but so far that hasn't happened.Jett was the first rock star to appear on the series, but was followed by Roland Gift, Sheena Easton, Martin Kemp, and Roger Daltrey.Source