She was asked to return due to her personality and popularity with the audience on Strictly Come Dancing. She appeared on BBC Breakfast for a second time in January 2008 and a third time in September 2008.“I absolutely loved taking part in Strictly Come Dancing and jumped at the chance to take part in the live show, and thanks to my bosses at The Bill I've got the chance to get back out there and this time, fingers crossed, win it for the girls! On , Lytton first appeared in the ITV1 police drama The Bill as PC Beth Green.She has appeared on The Paul O'Grady Show to promote her role in The Bill.
She is known for her television roles as Ruby Allen in East Enders (2005–06), and PC Beth Green in The Bill (2007–09).
She also finished fourth in series 4 of Strictly Come Dancing in 2006 and represented the UK at the Eurovision Dance Contest 2008, finishing ninth.
In 2006, Lytton took part in the fourth series of the popular BBC One reality television programme Strictly Come Dancing, and aged 17 at the time was the youngest contestant to have appeared on the show until gymnast Claudia Fragapane took part in 2016.
Louisa's professional dance partner was Vincent Simone.
On 26 June 2007 she made a second appearance on lunchtime show Loose Women, this time promoting her addition to the cast of The Bill.