Billy Mack
Billy Mack is an aging rocker attempting to make a comeback with a new version of the Troggs song "Love Is All Around." He is a hard-partying ex-heroin addict rock-and-roller who is over the hill, but looking to make a comeback. Billy is well aware that the single is awful, yet releases it in hopes of reaching the Christmas number one. It is revealed at the end that he has reached number one, and he gets invited to a party at Elton John’s house. However, midway through the party, he decides that his manager, Joe, is in need of company on Christmas Eve, and leaves the party to join him.
Joe
Joe is Billy's long-suffering manager. He is also aware that the single is awful, but does his best to promote it. This is a struggle, as Billy is notoriously bad at behaving at press appearances, or on television. He loves and admires Billy, but often goes unappreciated for his work.
Juliet
Juliet is first seen getting married to her fiancé, Peter. At the wedding ceremony, she is radiant as she walks down the aisle. She tries to handle Peter's friend Mark with care and respect, even after he declares his love for her.
Peter
Peter is Juliet’s husband. He is unaware of Mark’s feelings towards Juliet, and spends a lot of time asking Mark to be friendlier towards his fiancé, rather than dismissive.
Mark
Mark is Peter’s best friend, owns a gallery, and is in love with Juliet. He begins the story by filming their wedding. Later on, Juliet turns up unexpectedly at his apartment, looking for his footage. He is embarrassed when she realizes that he's taken all his footage of her. He declares his love on Christmas, but expects nothing in return.
Jamie
Jamie is a crime novelist who goes to France to write after his girlfriend cheats on him. He is charming and earnest and falls in love with Aurelia, his housekeeper, eventually flying to her country to propose to her.
Aurelia
Aurelia is the Portuguese housekeeper that Jamie falls in love with. She is intelligent, conscientious, and reserved, and falls in love with Jamie in spite of his foolishness.
Harry
Harry is a wealthy director of a design agency, married to Karen. Whilst his marriage is comfortable, he is tempted by the sexual comments of the new girl in the office, the twenty-something Mia. He flirts with her, asking if she has a boyfriend, and even buys her a Christmas gift.
Karen
Karen is Harry's wife, a thoughtful mother, and sister to David, the prime minister. She has a good sense of humor and also provides comfort to Daniel, a friend of hers who recently lost his wife. She has a soft spot for Joni Mitchell, whom she says taught her to feel, and is heartbroken when she discovers that Harry might be having an affair.
David
David is Karen’s brother, and the recently elected Prime Minister of England. He is self-deprecating and a little silly, less formal than one might imagine a prime minister to be. He falls in love with Natalie and becomes determined to find her and declare his love on Christmas Eve.
Natalie
Natalie works at Downing Street for the Prime Minister. When she first meets David, she can’t stop swearing, which charms him. We learn that she had an abusive past relationship, where her boyfriend constantly called her fat.
Daniel
Daniel is mourning the recent death of his wife, Joanna. He also has to raise his stepson, Sam, on his own. While he struggles at first to know how to be a good father to Sam, he forges a strong connection with the boy and helps him muster the courage to declare his love to his grade-school crush.
Sarah
Sarah is an American friend of Juliet and Mark’s, and is first seen at their wedding, sitting next to Jamie. She works at Harry’s company, and it is revealed she has been in love with Karl, the company’s creative director, for years. She finally gets to dance with Karl at the office party, and takes him home. However, they are interrupted by her brother, who suffers from severe mental illness, and needs constant care. She is well-meaning, and puts her brother before her own desires.
Colin
Colin is a dorky English caterer who is forward and clumsy when talking to women. He decides to go to America and woo all the women he can with his "cute British accent." His plan works, and he ends up scoring a beautiful American girlfriend.
Tony
Tony is Colin’s friend, and a production assistant. He acts as the voice of reason when Colin announces he is going to America. Tony is gobsmacked when Colin returns with a gorgeous girlfriend, and brings her cousin back for Tony also.
