In 2003, Beacham returned to the UK to take a role in the ITV prison drama "Bad Girls". She played inmate Phyllida "Phyl" Oswyn for four years, partnered with Beverly "Bev" Tull (played by Amanda Barrie) as the "Costa Cons". She remained with the series to the end in 2006. In 2006, she played the Wicked Witch in a production of "Snow White and the Seven Dwarves" in Guildford. She appeared there again the following year in a production of "Jack and the Beanstalk". She also appeared in the 2006 movie "Love and Other Disasters". She returned to stage work and toured the UK in 2007 as a lead in the Noël Coward play "Hay Fever". Later that year, she competed in the 2007 series of the BBC's "Strictly Come Dancing" with professional partner Vincent Simone, though she was eliminated early in the competition (the second of fourteen celebrities) on 14 October 2007.