Career: Keith became a star on the small screen in 1975, playing snooty Margo Leadbetter in BBC sitcom The Good Life. More success followed with To the Manor Born, in which she played penniless aristocrat Audrey fforbes-Hamilton alongside Peter Bowles, with whom she was reunited in ITV's Executive Stress in 1986. No Job for a Lady in which she played a rebellious Labour MP and Next of Kin, in which she depicted a retired woman coping with her estranged daughter's children, failed to make much of a mark. She has since largely stayed away from TV, concentrating instead on the theatre, gardening and charity work. However, Keith did return to the small screen in 2003 in Margery and Gladys opposite June Brown, and starred in a one-off To the Manor Born Christmas Special in 2007.

Career: Brown has had a long TV career, and in the 1970s took roles in Coronation Street, Doctor Who, Angels and Survivors. She has been actively involved in the theatre and is recognised as a great Shakespearean actress - but only became a household name when she joined the cast of EastEnders in 1985. She took a break from the soap in 1993, but Dot Cotton returned four years later and has stayed there ever since. Away from the Square, Brown has appeared in the movie Bean, and played Nannie Slagg in the BBC's big-budget production of Gormenghast in 2000.

Career: She spent many years in the theatre, but believes that people really began taking notice of her when she appeared in the West End play Stepping Out, for which she won a prestigious Olivier Award. TV work soon followed as she landed roles in Keeping Up Appearances, Dangerfield and Coronation Street, before starring alongside Derek Jacobi and Ian McKellen in the sitcom Vicious, which began in 2013. She's continued to appear on stage, winning a second Olivier in 2002 for Humble Boy at the National Theatre. She's also cropped up in films including Run for Your Wife and Absolutely Fabulous: The Movie.

Career: Roger's first film was 1968's The Magus, opposite Michael Caine and Anthony Quinn. He then featured in movies including Hamlet, The Go-Between and Fiddler on the Roof. Appearances in cult shows The Protectors and Jason King followed. He went on to feature in acclaimed programmes The Naked Civil Servant and Play for Today before accepting the role which made him a household name - Trigger in Only Fools and Horses. He went on to star in a wide variety of projects, including The Vicar of Dibley, Harry Potter and the Goblet of Fire, Vanity Fair, Doctor Who, Poirot, The Borgias and The Old Guys. He died of pancreatic cancer on January 15, 2014. He was 69.

Career: Freeman's TV debut came in 1997 with a bit-part in This Life. His first starring role arrived the following year in the short film I Just Want to Kiss You. Notching up a string of appearances in the TV series Lock, Stock..., Casualty and Black Books, he really came to the public's attention in 2001 as lovelorn Tim Canterbury in The Office. He's since become a major player in the British comedy and drama scene, appearing in Charles II: The Power and the Passion, Hardware, Love Actually, The Hitchhiker's Guide to the Galaxy, The Robinsons, Confetti, Hot Fuzz, and Nativity. He returned to TV in 2010, playing Dr John Watson in the acclaimed Sherlock. He played the lead role of Bilbo Baggins in Peter Jackson's three-part adaptation of The Hobbit.