Question: Veronica "Vera" Duckworth (also Burton) was a fictional character from the British ITV soap opera, "Coronation Street", played by Liz Dawn, she reappeared posthumously for a single appearance, in which her ficitional husband Jack died, which English actor, singer and author, played Jack Duckworth ?

Context articles: Jack Sugden
Liz Dawn
Ken Barlow
Jack Duckworth
Vera Duckworth
Tina McIntyre
Bill Tarmey
Tommy Duckworth
Ivy Tilsley
Terry Duckworth

John Jacob "Jack" Sugden is a fictional character from the British ITV soap opera, "Emmerdale".
 The character was originally played by Andrew Burt from 1972 to 1973 with a brief return in 1976, when the character left for Italy to write a book.
 On his return in 1980 he was played by Clive Hornby.
 Hornby stayed in the role until 2008 when he was forced to take a break from Emmerdale due to illness.
 His last on-screen appearance was on 21 February 2008, and his absence was explained by the character visiting his mother, Annie Sugden (Sheila Mercier) in Spain.
 Although Hornby intended to return to the series he did not recover from his health problems and early July that year died of the illness without returning to the series and Jack died off screen the following year.
Sylvia Butterfield MBE (8 November 1939 – 25 September 2017), known professionally as Elizabeth Dawn or Liz Dawn, was an English actress, best known for her role as Vera Duckworth in the long-running British soap opera "Coronation Street".
 First starting on the serial in 1974, she had a recurring role as a factory worker until her husband, Jack, (played by Bill Tarmey) first appeared in 1979.
 She played the character of Vera for 34 years.
 For her role in the soap, she received the Lifetime Achievement Award at the 2008 British Soap Awards.
 She was appointed an MBE in the 2000 Queens Birthday Honours.
Kenneth "Ken" Barlow is a fictional character from the British ITV soap opera, "Coronation Street", played by William Roache.
 Ken was created by Tony Warren as one of "Coronation Street's" original characters.
 He debuted in the soap's first episode on 9 December 1960.
 Having appeared continuously since the programme's inception, December 2010 marked Ken's 50th anniversary on-screen.
 At this time, Roache officially became the longest-serving actor in a televised soap opera.
 Roache was honoured at the 2010 Guinness World Records ceremony for the achievement, when he surpassed actor Don Hastings from the American soap opera "As the World Turns", who previously held this title.
 Roache stated in 2010 that he has no plans to leave the role and will remain in "Coronation Street" for as long as they will have him.
John Harold "Jack" Duckworth was a fictional character from the British ITV soap opera, "Coronation Street", played by Bill Tarmey.
 The character debuted on-screen during the episode airing on 28 November 1979.
 Jack was introduced by executive producer Bill Podmore.
 Tarmey had previously appeared in the background of many episodes set in the Rovers Return, including some occasional speaking lines.
Veronica "Vera" Duckworth (also Burton) was a fictional character from the British ITV soap opera, "Coronation Street", played by Liz Dawn.
 She first appeared on 19 August 1974 and last appeared on 18 January 2008, where the character peacefully died in her sleep at the age of 70 from heart failure.
 Her funeral was held on 22 January 2008.
 She reappeared posthumously for a single appearance on the 8 November 2010 episode, in which her husband Jack (Bill Tarmey) died.
Tina McIntyre is a fictional character from the British ITV soap opera "Coronation Street".
 Portrayed by Michelle Keegan, the character first appeared on-screen during the episode that was shown 7 January 2008.
 The character was central to many key storylines relating to issues such as perjury, abortion and surrogacy, and had relationships with David Platt (Jack P. Shepherd), Graeme Proctor (Craig Gazey), Tommy Duckworth (Chris Fountain), Dr. Matt Carter (Oliver Mellor) and Jason Grimshaw (Ryan Thomas), and had an affair with married man Peter Barlow (Chris Gascoyne).
 Tina has also had feuds with Kylie Platt (Paula Lane), Tracy Barlow (Kate Ford) and Kirsty Soames (Natalie Gumede).
Bill Tarmey (born William Piddington; 4 April 1941 – 9 November 2012) was an English actor, singer and author, best known for playing Jack Duckworth in the soap opera "Coronation Street".
 First appearing in the role in November 1979, he played it continually from 1983 to 2010.
Thomas "Tommy" Duckworth is a fictional character from the British ITV soap opera, "Coronation Street", played by Darryl Edwards from 1992 to 1997, Joseph Aston in 2000 and Chris Fountain from 2011 to 2013.
 The character was born on screen during the episode airing on 9 September 1992 and departed in December 1993, before returning for five short stints in 1994, 1995, 1996, 1997, and 2000.
 The character returned on a more permanent basis on 28 March 2011.
 Tommy is the son of Terry (Nigel Pivaro) and Lisa Duckworth (Caroline Milmoe).
 Since his first appearance in 1992, he had few storylines; but after his return in 2011, he became more of a central character.
Ivy Joan Tilsley (also Nelson and Brennan) is a fictional character from the British ITV soap opera, "Coronation Street", 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).
Terrence Edgar "Terry" Duckworth is a fictional character from the British ITV soap opera, "Coronation Street", played by Nigel Pivaro.
 He was introduced as the son of popular characters Jack and Vera Duckworth, making his on-screen debut on 1 August 1983.
 Terry has three sons: Paul Clayton, Tommy Duckworth, and Brad Armstrong.
 The character made regular appearances until leaving the street in 1987 and has made only brief visits in years following.
 In February 2012, it was announced Pivaro would be returning to "Coronation Street" and he made his return as Terry on 16 April 2012.
 Terry departed on 11 May 2012.