JOHNNY ANGLAIS (aka Jonny Cockfill) is a hardcore porn star. He also used to teach Politics and PSHE at an Essex secondary school, but was forced to quit his teaching role after the students found out about his second job. Following his resignation he said he had "no regrets" and is "proud" of his work as a stripper and porn actor.
ANNA SPAN - real name Anna Arrowsmith - is one of the porn industry's best-known film directors and became the UK's first ever female porn director in 1999. Since then she has made over 250 films and won numerous awards for her work. She unsuccessfully stood as a Liberal Democrat candidate for parliament in May 2010.
JESSI FISCHER, nicknamed the "sexademic" for her focus on cultural analysis and sexual biology, is a writer, public speaker and sex educator for high schools and universities in the US. She is a fundraising organiser for San Francisco Sex Information.
SHELLEY LUBBEN is a former porn actress and stripper who is now an ordained chaplain. She featured in around 30 porn films before quitting the industry to begin campaigning vigorously against pornography. Lubben is now executive director of the Pink Cross Foundation, aimed at helping porn stars, prostitutes and people addicted to porn.
DR GAIL DINES is a lecturer, author and feminist activist, whose work focuses on pornography, sexualisation and the effect that these can have on society. Dines is a founding member of the group Stop Porn Culture which is fighting to end sexual exploitation and what it claims is the increasing sexualisation of pop culture.
DR RICHARD WOOLFSON is a child psychologist and expert on child and family development. A fellow of the British Psychological Society, he has published numerous books including 'How to Have a Happy Child' and claims that pornography has a proven negative influence on children and adolescents.