The Archers trial. Unlike television soaps, "The Archers" actors are not held on retainers and work on the series usually for a few days a month. By the nature of the storylines concentrating on particular groups of characters, in any one week out of a cast of about 60, the episodes include approximately 2030 speaking-characters. Most of the cast do acting work on other projects and can disappear for long periods if they are working on commitments such as films or television series. Tamsin Greig plays Debbie Aldridge and has appeared on many television series such as "Green Wing", "Love Soup", "Black
Graeme Garden of the improvisation television series "Whose Line Is It Anyway?", which has a similar format. He was a co-writer of the BBC Radio 4 comedy "Giles Wemmbley-Hogg Goes Off", and in 2006, Garden co-devised and appeared on the BBC Radio 4 comedy quiz show, "The Unbelievable Truth". In 2003, Garden wrote the Radio 4 sitcom "About a Dog", based on an original idea by Debbie Barham, with a second series in 2007. Garden has appeared in two of Big Finish's "Doctor Who" audio dramas playing a parodic character. In "Bang-Bang-a-Boom!" he plays Professor Fassbinder, a parody of Victor Bergman in