Title: When the Boat Comes In
Content: Michelle Newell as Mary Seaton née Routledge (1976 / Series 1 / 6 episodes) ; Noel O'Connell as Young Tommy (1976–77 / Series 2-3 / 6 episodes) ; Catherine Terris as Miss Laidlaw (1976–77 / Series 2-3 / 7 episodes) ; Vernon Drake as Hotel Porter (1976–77 / Series 2-3 / 7 episodes) ; Isla Blair as Lady Caroline No. 1 (1976–77 / Series 2 / 5 episodes) ; Roger Avon as Stan Liddell (1977, 81 / Series 2-4 / 5 episodes) ; Ian Cullen as Geordie Watson (1977, 81 / Series 2-4 / 4 episodes) ; Bobby Pattinson as Eddy Morton 
Title: When the Boat Comes In
Content:  3/ 3 episodes) ; Colin Douglas as John Ryder (1977 / Series 3/ 3 episodes) ; Murray Hayne as Norman Hodges (1977 / Series 3/ 3 episodes) ; Peter McGowan as Len Laidlaw (1977 / Series 3/ 3 episodes) ; Christine Anderson as Rosie Mason (1977 / Series 3/ 3 episodes) ; W. Morgan Sheppard as Robert Joseph Dixon (1977 / Series 3/ 3 episodes) ; Mary Larkin as Isobel Murcheson (1977 / Series 3/ 3 episodes) ; Joby Blanshard as Milburn (1977 / Series 3 / 3 episodes) ; Judy Loe as Tania Corley (1981 / Series 4 / 3 episodes) 
Title: When the Boat Comes In
Content: James Bolam as Jack Ford (1976–77,81 / Series 1-4 / 48 episodes) ; James Garbutt as Bill Seaton (1976–77 / Series 1-3 / 39 episodes) ; Jean Heywood as Bella Seaton (1976–77 / Series 1-3 / 39 episodes) ; John Nightingale as Tom Seaton (1976–77 / Series 1-3 / 39 episodes) ; Edward Wilson as Billy Seaton (1976–77, 81 / Series 1-4 / 35 episodes) ; Malcolm Terris as Matt Headley (1976–77 / Series 1-3 / 34 episodes) ; Susan Jameson as Jessie Ashton née Seaton (1976–77, 81 / Series 1-4 / 30 episodes) ; Madelaine Newton as Dolly (1976–77 / Series 1-3 / 30 episodes) ; Basil Henson as Sir Horatio Manners (1976–77 / Series 1-3 / 25 episodes) ; Geoffrey Rose as Arthur Ashton (1976–77 / Series 1-3 / 18 episodes) ; Rosalind Bailey as Sarah Headley née Lytton (1977, 81 / Series 2-4 / 23 episodes) ; William Fox as the Duke of Bedlington (1976–77 / Series 2-3 / 13 episodes) ; Lois Baxter as Lady Caroline No. 2 (1977, 81 / Series 3-4 / 15 episodes) 
Title: When the Boat Comes In
Content:  / Series 2-3 / 4 episodes) ; John Gabriel as Dr Stoker (1976–77 / Series 2-3 / 3 episodes) ; Ralph Michael as Father Courtnay (1976–77 / Series 2-3 / 3 episodes) ; Sheri Shepstone as Nellie (1976–77 / Series 2-3 / 3 episodes) ; John Malcolm as Poskett (1976–77 / Series 2-3 / 3 episodes) ; Martin Duncan as Roddy (1977 / Series 2-3 / 3 episodes) ; David Lawton as Tovey No. 1 (1976–77 / Series 2 / 3 episodes) ; John Kidd as Tovey No. 2 (1977 / Series 3/ 5 episodes) ; Christopher Benjamin as Channing (1977 / 
Title: List of When the Boat Comes In episodes
Content: "Jack" [John] Ford – James Bolam ; Jessie Seaton – Susan Jameson ; "Bill" [William] Seaton – James Garbutt ; "Bella" [Isabella] May Seaton – Jean Heywood ; Tom Seaton – John Nightingale ; Mary Seaton [nee Routledge] – Michelle Newell [until "Paddy Boyle's Discharge"] ; Billy Seaton – Edward Wilson ; Matt Headley – Malcolm Terris ; Dolly Ford née Headley – Madelaine Newton [Introduced in "Fish and Woolly Jumpers"] ; Sir Horatio Manners – Basil Henson [Introduced in "Swords and Pick Handles"] ; Arthur Ashton – Geoffrey Rose [Introduced in "Empire Day on the Slag Heap"] 
Title: When the Boat Comes In
Content:  When the Boat Comes In is a British television period drama produced by the BBC between 1976 and 1981. The series stars James Bolam as Jack Ford, a First World War veteran who returns to his poverty-stricken (fictional) town of Gallowshield in the North East of England. The series dramatises the interwar political struggles of the 1920s and 1930s and explores the impact of national and international politics upon Ford and the people around him.
Title: When the Boat Comes In
Content: Series 1: 8 January to 1 April 1976 (13 50 min episodes) ; Series 2: 29 October 1976 to 4 February 1977 (13 50 min episodes) ; Series 3: 8 September to 15 December 1977 (15 50 min episodes) ; Series 4: 17 February to 21 April 1981 (10 50 min episodes) 
Title: When the Boat Comes In
Content:  The majority of episodes were written by creator James Mitchell, but in Series 1 north-eastern writers Tom Hadaway, Sid Chaplin and Alex Glasgow contributed episodes, and in Series 3 Jeremy Burnham and Colin Morris shared writing duties with Mitchell. Mitchell also wrote three tie-in books to the T.V. show: When the Boat Comes In, When the Boat Comes In: The Hungry Years and When the Boat Comes In: Upwards and Onwards. The final book brings the reader up to date with the end of the second series of the TV show. The traditional tune "When The Boat Comes In" was adapted by David Fanshawe and sung by Alex Glasgow for the title theme of the series. Fanshawe also composed the incidental music. The BBC revived the series in 1981, with the fourth series telling the story of Jack Ford as he returns to Britain penniless, after six years spent bootlegging in the United States, and follows him as he sets up in London.
Title: David Hedison
Content:  Irwin Allen offered Hedison the role of Captain Lee Crane in the television series Voyage to the Bottom of the Sea, co-starring with Richard Basehart, which ran from 1964 to 1968.
Title: List of When the Boat Comes In episodes
Content: Series Created by James Mitchell ; Theme Music: David Fanshawe – Sung by Alex Glasgow ; Script Editor: William Humble ; Producer: Leonard Lewis 

Question: who played sarah hedley in when the boat comes in?
Answer: Rosalind Bailey.