Samantha Spiro was born on June 20, 1968 in Mill Hill, London, England. She is an actress, known for From Hell (2001), A Running Jump (2012) and Bedlam (1994). She has been married to Mark Leadbetter since February 2002. They have two children.

She was awarded the Laurence Olivier Theatre Award in 2001 (2000 season) for Best Actress in a Musical for her performance in Merrily We Roll Along at the Donmar Warehouse. She was awarded the 2004 Joseph Jefferson Award for Actress in A Supporting Role in a Musical for "A Little Night Music" at the Chicago Shakespeare Theater in Chicago, Illinois. She was awarded the 2004 Joseph Jefferson Award for Actress in a Supporting Role in a Musical for "A Little Night Music" at the Chicago Shakespeare Theater in Chicago, Illinois. Has 2 daughters (b.2005 and b.2007) with her husband Mark Leadbetter .