Hugh Bonneville, Jim Carter, Phyllis Logan, Elizabeth McGovern, Lesley Nicol, Maggie Smith, Laura Carmichael, Brendan Coyle, Michelle Dockery, Joanne Froggatt, Rob James-Collier, Sophie McShera, Siobhan Finneran, Dan Stevens, Penelope Wilton, Allen Leech, Jessica Brown Findlay, Kevin Doyle, David Robb, Amy Nuttall, Ed Speleers, Matt Milne, Thomas Howes
Lord Crawley sees his family heritage, especially the grand country home Downton Abbey, as his mission in life. The death of his heir aboard the Titanic means distant cousin Matthew Crawley, a Manchester lawyer, suddenly is next in line and accepts moving onto the vast estate with his even more modernist, socially engaged mother, who clashes with his lordship's domineering, conservative mother, the dowager. Marrying off the daughters is another concern. Meanwhile, the butler presides over a staff which serves the family, but also lead most of their entire lives in the servants' quarters, intriguing amongst themselves.
- Season 1: 1. Episode #1.1 (2010). April 1912:- The heir to the title of Earl of Grantham, long time inhabitant of Downton Abbey, perishes on the 'Titanic'. Robert, the benevolent current earl, owes his wealth to his American wife Cora but they have only three daughters, who cannot inherit by law, so another heir must be found by marrying off Mary, the eldest girl. The Duke of Crowborough is a possibility but he is a closet gay who only has eyes for Thomas, the handsome but obnoxious footman, and soon departs. Robert's mother, the dowager, and Cora decide that the next best candidate is Matthew Crawley...
- Season 1: 2. Episode #1.2 (2010). September 1912. Designated heir Matthew Crawley and his mother Isobel arrive and move into a house in the grounds of Downton Abbey but Matthew is uncomfortable with having servants and is not keen on an arranged marriage - something he has in common with Lady Mary. Robert's mother Violet looks down on them as they are not from her class - Matthew is a working solicitor and Isobel a trained nurse and doctor's widow, who nonetheless impresses when she helps at the local hospital and saves the life of one of Robert's tenants. Cora upbraids the two nastiest servants, ...
- Season 1: 3. Episode #1.3 (2010). March 1913. Gwen, one of the maids, has bought a typewriter and has applied for a secretarial post. Most of the staff are dismissive of her aspirations but the family - except Violet, of course - are supportive, and youngest daughter Sybil offers to supply a reference. Evelyn Napier, considered an eligible catch for Mary, arrives for the hunt, bringing his handsome friend Kemal Pamuk, a Turkish diplomat, who throws himself at her. He goes to her room at night for sex, during which he dies of a heart attack. Mary, Cora, and head housemaid Anna return the body to his ...
- Season 1: 4. Episode #1.4 (2010). May 1913. A fair comes to the village and here Mrs. Hughes meets up with an old flame, Joe, who once asked her to marry him and does so again. Despite being gay, Thomas escorts Daisy to the fair purely out of spite as he knows William is fond of her. The gesture is not lost on either John Bates or Mrs. Hughes. Gwen is not called for interview for the secretarial post but Sybil agrees to support future applications. A new chauffeur, Tom Branson, arrives. He is well-read and politically aware. Having got one over on Isobel regarding a medical diagnosis, Violet attempts ...
- Season 1: 5. Episode #1.5 (2010). August 1913. O'Brien and Thomas continue to spread their malice, ensuring that Lady Edith learns from Daisy where Kemal died and attempting to frame John Bates for the theft of a snuff-box though Anna, clearly fond of John, ensures the plan backfires on them. Thomas's gossip also discredits Lady Mary's eligibility as a bride and the family must entertain the middle-aged Sir Anthony Strallen as a prospective husband. Mary is bored by him and it brings her closer to Matthew but Edith seems genuinely interested in him. Mrs. Patmore, the cook, must accept that her ...
- Season 1: 6. Episode #1.6 (2010). May 1914. Encouraged by politically aware chauffeur Tom Branson, the socially conscious Lady Sybil espouses politics as a means of aiding equality for women and the lower classes, to her father's anger. At a political meeting she is injured in a scuffle and rescued by Matthew. A grateful Lady Mary accepts Matthew's proposal of marriage but tells her mother she feels she should come clean about Kemal to him. Rumours about this indiscretion are now rife and Cora tells her mother-in-law how she helped Mary move the body. Edith continues to see more and more of Sir ...
- Season 1: 7. Episode #1.7 (2010). July 1914. In London former suitor Evelyn Napier assures Lady Mary that it was Edith, not he, who spread gossip about her and Kemal. Mary counters by wrecking her sister's marriage plans with Sir Anthony. Robert is reluctant to dismiss John even though O'Brien and Thomas have obtained a letter claiming that he stole from a previous employer. Anna accompanies Mrs. Patmore to London for eye tests, resulting in corrective surgery and, whilst there, discovers that John took the blame for the theft for his ex-wife Vera, a fact which Robert is pleased to hear. Thomas, fed ...
- Season 2: 1. Episode #2.1 (2011). November 1916. Matthew is fighting in the horrific Battle of the Somme but at Downton Robert, given a courtesy title as head of the local yeomanry but deemed too old to fight, and William, forbidden by his father to enlist, feel frustrated as white feathers are given to non-combatants. Sybil also feels useless and goes to York for nursing training whilst Mary hides her disappointment when Matthew, home on leave, brings his betrothed, Lavinia Swire, to meet her. She nonetheless sees him off, giving him her lucky mascot, as he returns to the fighting, Back in the ...
- Season 2: 2. Episode #2.2 (2011). April 1917. With John still absent, Isobel's butler Mosley makes a play for Anna but is rejected. Robert gets a new valet, shell-shocked ex-soldier Henry Lang, whilst William goes off to war. Edith learns to drive a tractor extremely well, and nearly succumbs to a kiss from the married farmer Mr. Drake. Sybil and Thomas work in the cottage hospital, where the latter begins to learn some humanity. At Isobel's suggestion - and to Violet's dismay - Downton Abbey is turned into a convalescent ward to ease the hospital's bed shortage. Mary invites middle-aged newspaper ...
- Season 2: 3. Episode #2.3 (2011). July 1917. As Isobel's plan to turn Downton into a hospital unites upstairs and downstairs in protest, O'Brien persuades Cora to make Thomas the hospital manager. Ethel enjoys the patients' attention whilst Edith earns respect as an auxiliary nurse. Chauffeur Branson, extolling the Russian Revolution, intends to be a conscientious objector but is rejected on medical grounds as former footman William, on his way to the trenches, proposes to Daisy. As Lang finds his trauma interferes with his work Anna discovers Bates working in a local pub. He tells her that Vera has ...
- Season 2: 4. Episode #2.4 (2011). 1918. Angry that Cora has reorganized hospital rotas to make life easier for the staff, Isobel leaves for nursing work in France just before news arrives that Matthew and William are missing. In Isobel's absence, her cook, Mrs. Bird, and butler, Molesley, run a soup kitchen for veterans, in which they are joined by Mrs. Patmore and Daisy, who bring leftovers from Downton. O'Brien informs on them to Cora. Robert tracks John Bates down and returns him to Downton Abbey whilst Mrs. Hughes catches Ethel in bed with one of the patients and sacks her, though she is forced to...
- Season 2: 5. Episode #2.5 (2011). August 1918: Deserted by the baby's father, Ethel has been installed with her child in a cottage on the estate by a sympathetic Mrs. Hughes, who brings her food. Jane, a war widow, has taken Ethel's place as a maid. Vera Bates returns, having spent John's money but with no intention of sticking to their arrangement and planning to make money by selling the story of Lady Mary's indiscretion to Carlisle's newspaper. Tipped off by Anna, Mary goes to see him and explains all, thus scotching Vera's plan as the newspaper owner threatens her with libel action. Having ...
- Season 2: 6. Episode #2.6 (2011). November 1918. Believing her marriage to have been a sham, Daisy is reluctant to accept a widow's pension whilst Robert writes to the father of Ethel's child, only to learn that he was killed in the war. As the Armistice is announced a Canadian soldier, suffering terrible burns, comes to recuperate and declares that he is Patrick, the heir presumed dead on the 'Titanic' and until recently an amnesiac. Only Edith believes him. Carlisle plans to buy a house near Downton and poaches Carson as his butler. He also notes Mary's devotion to Matthew and threatens to expose ...
- Season 2: 7. Episode #2.7 (2011). With the house no longer a hospital Thomas hopes to make money on the black market but is ruined after being cheated by his supplier. Mrs Hughes helps Ethel to confront Mr and Mrs Bryant, the parents of her baby's late father but, whilst his wife seems moved, Bryant dismisses Ethel as a liar and fraud with no proof of paternity. Carlisle tries to bribe Anna to spy on Mary but she refuses and tells Mrs Hughes and Carson, the latter consequently withdrawing his offer to work for Carlisle, whom he sees as underhand. Robert, disillusioned by the war's failure to ...
- Season 2: 8. Episode #2.8 (2011). April 1919. As Downton Abbey prepares for Lavinia and Matthew's wedding, Sybil and Tom shock the family by announcing their intention to move to Dublin, where he has work, and marry. However, events are overtaken and the marriage is put on hold when Carson, Cora, Lavinia and others fall sick with the Spanish flu. Thomas uses the situation as an excuse to get his job back but Lavinia, aware of Matthew's feelings for Mary, suggests that the marriage be called off. After admitting their mutual feelings, Jane gives Robert her resignation, her young son's future assured ...
- Season 2: 9. Christmas Special 2011 (2011). At Christmas 1919 the Crawleys welcome Edith's former suitor Sir Anthony, now a war invalid, who tells her that he is too old for her, and Robert's sister Rosamund with her beau, the raffish Lord Hepworth. Sybil writes to announce her pregnancy. After Carlisle's selfish attitude towards the servants and his jealousy when Mary accompanies Matthew to visit Lavinia's grave, Robert prises from his wife the fact that the newspaper baron is effectively blackmailing his daughter into marriage to keep her secret and, on her father's advice, Mary breaks off the engagement, ...
- Season 3: 1. Episode #3.1 (2012). Wedding guests descend on Downton Abbey, where disasters - large and small - threaten. One is Cora's freewheeling American mother, who tries to loosen up her in-laws.
- Season 3: 2. Episode #3.2 (2012). A conflict between two members of the house staff escalates. Meanwhile, the family tries to impress Martha by planning a lavish dinner party.
- Season 3: 3. Episode #3.3 (2012). The fate of Downton Abbey hinges on a letter from a dead man. Edith and Sir Anthony face their own fateful moment. Mrs. Hughes confronts a crisis.
- Season 3: 4. Episode #3.4 (2012). Two social revolutions arrive at Downton Abbey: the Irish civil war and the fight for women's suffrage. A mysterious conspiracy keeps Anna and Bates apart.
- Season 3: 5. Episode #3.5 (2012). The Crawley family faces its severest test yet. Meanwhile, new faces try to fit into the tight-knit circle of servants. New evidence turns up in a baffling case.
- Season 3: 6. Episode #3.6 (2012). Things go badly amiss at Downton Abbey. Robert and Cora are not speaking. The servants are shunning Matthew's mother, Isobel. And Matthew and Robert have fallen out. Bates takes a gamble.
- Season 3: 7. Episode #3.7 (2012). A vindictive Ms. O'Brien hatches a damaging plot. Edith make a major decision. Matthew has a major plan for changing things, and Tom's brother pays a visit.
- Season 3: 8. Episode #3.8 (2012). Change arrives in a big way for several key characters at Downton Abbey. A yearly cricket match with the village sees old scores settled and new plots are hatched.
- Season 3: 9. Christmas Special 2012 (2012). The Crawleys head to a Scottish hunting lodge, while the downstairs staff stays behind at Downton Abbey. New romances flare up, and a crisis unfolds.
- Season 4: 1. Episode #4.1.
- Season 4: 2. Episode #4.2.
- Season 4: 3. Episode #4.3.
- Season 4: 4. Episode #4.4.
- Season 4: 5. Episode #4.5.
- Season 4: 6. Episode #4.6.
- Season 4: 7. Episode #4.7.
- Season 4: 8. Episode #4.8.
- Season 4: 9. Episode #4.9 (2013).