The film star, who spent time in the care system as a youngster, feels passionately that no child should be without a safe and secure environment in which to grow and develop.
"As a foster child myself I would not be where I am today without the people that were kind enough to help and care for me when others were unable. Please please consider fostering a child."
Samantha joins singer Gareth Gates, the son of foster carers, in supporting this year’s campaign, which beings on Monday 14 May and will highlight the urgent need for more foster carers across the UK.
For more information about fostering and becoming a foster carer, visit www.couldyoufoster.org.uk or ring Fosterline on 0800 040 7675.