An actress who had dreams from an early age. She aspired to get to the top. Jan never attended any acting schools as her parents could not afford to send her there, so all she learnt she did so by asking and doing. From the age of 7, Jan attended dance class. By 12 years she won the British Tap Dancing Championships and English Tap Dancing championships, as well as becoming northeast tap and song & dance winner. Jan took her dance teachers tickets at age 18.
Born into a mining family, Graveson began performing on the club circuit at the age of six but made her television debut in White Peak Farm in 1988. Afterwards, she achieved her breakthrough in EastEnders as Disa O'Brien an estranged teenage runaway. She has also appeared in episodes of Spender, Heartbeat, Casualty, Wycliffe and A Touch of Frost. Graveson appeared in the BBC children's television show Byker Grove from 2004 to 2006 as Heather, the mother of Hayley Robinson. Graveson was seen in an episode of the BBC hospital drama Holby City in 2006, and in 2007 she appeared in the ITV sitcom Benidorm. She guest starred in the ITV police drama, The Bill, in 2008.