In 2010 Madoc took part in the BBC Wales programme Coming Home about her Welsh family history in which she was told of her being related to David Lloyd George.
Original Wispa advertisements, all performed to camera in front of a black background, featured well-known actors such as Paul Eddington, Nigel Hawthorne, Victoria Wood, Julie Walters, Simon Cadell, and Ruth Madoc.
Babe Ruth | Ruth Bader Ginsburg | Ruth Richard | Ruth Ann Minner | Ruth Buzzi | Ruth Brown | Ruth | Linda Ruth Williams | Ruth Cracknell | Ruth Westheimer | Ruth Watson | Ruth St. Denis | Ruth Rendell | Ruth Minnikin | Ruth Fuchs | Marquis de St Ruth | Ruth Teitelbaum | Ruth Padel | Ruth Kelly | Ruth Gordon | Ruth Lilly | Ruth Langsford | Ruth Kinna | Ruth First | Ruth Chatterton | Ruth Warrick | Ruth Springford | Ruth Richardson | Ruth Orkin | Ruth Miller |