Career
Hayes starred as Abi Harper in the British television series My Family. Hayes portrayed Abi Harper, as a dimwitted and clumsy student in the British sitcom My Family, a role she held between 2002 and 2008, when the character became a nun, allowing a potential return. She has also made guest appearances in Little Britain, Paul Merton: The Series, Agatha Christie"s Marple, Birds of a Feather, and The Bill.
Her early appearances included playing a pupil of class 5C from 1991 onwards in the series Up the Garden On 15 October 2005, she appeared on the third series of the British Broadcasting Corporation"s pro celebrity dancing show Strictly Come Dancing, dancing with professional Matthew Cutler.
The couple were the first to be eliminated. This is Siobhan"s second role in EastEnders, as she played Jane on 4 July 1991.
Hayes starred in the 2011 British live action 3D family comedy film Horrid Henry: The Movie, playing the role of the titular character"s mother.