Coronation Street is a British soap opera, initially produced by Granada Television. Created by writer Tony Warren, Coronation Street first broadcast on ITV on 9 December 1960. The following is a list of characters introduced in the show's twelfth year, by order of first appearance. Ivy Tilsley Ivy Joan Tilsley (née Nelson; previously Brennan) was played by Lynne Perrie. She was originally credited as Ivy Tyldesley. Ivy worked as a machinist at Mike Baldwin's (Johnny Briggs) factory, and was elevated to supervisor. Her best friend was Vera Duckworth (Liz Dawn). In the 1975 episode where the factory was burnt down, Ivy mentions that she is childless and her husband's name is "Jack"; before that, her husband was called "Wilf Tyldesley", and before that "Arthur". Jack himself made two appearances in 1975. By the time she became a street resident and a more regular character, her husband was named "Bert" and they had an adult son, Brian (Christopher Quinten). Ivy's storylines have included her feud with daughter-in-law Gail Tilsley (Helen Worth), losing her husband and son and her relationship with Don Brennan (Geoffrey Hinsliff). Edna Gee Edna Gee was played by Mavis Rogerson. Edna first appeared in 1971 working at the Mark Brittain mail order warehouse. Edna was the first wife of Fred Gee. Edna was well known in Weatherfield as being a bit of a flirt. In 1973 she attended Hilda Ogden's (Jean Alexander) birthday party and flirted with Ray Langton (Neville Buswell), but ended up in the Ogdens' bedroom with Billy Walker (Ken Farrington). Hilda thought Edna was in the room with Stan. Edna also enjoyed a gossip and along with workmate Ivy Tilsley (Lynne Perrie) started spreading rumours that Elsie Tanner's (Pat Phoenix) husband Alan Howard (Alan Browning) was having an affair. Her other workmates included Elsie, Ken Barlow (William Roache), Emily Nugent (Eileen Derbyshire), Vera Duckworth (Liz Dawn), Gail Potter (Helen Worth) and Tricia Hopkins (Kathy Jones). She attended Emily's wedding to Ernest Bishop (Stephen Hancock) in 1972. In October 1975, Edna celebrated her 40th birthday with Fred in The Rovers Return. The next day Edna was found dead in the warehouse fire, Len Fairclough (Peter Adamson) broke the news to all her friends and workmates. Mavis Wilton Mavis Wilton (née Riley) played by Thelma Barlow. A long-running series regular, Mavis appeared in the show for 26 years from 1971 to 1997. Introduced for a one-off cameo