Question: How many times has the star of the BBC play "Secrets" won the Laurence Olivier award?

Context paragraphs:
Eleanor Worthington Cox: Eleanor Worthington Cox (born 21 June 2001) is a British child actress from Merseyside most known for portraying Matilda Wormwood in "Matilda the Musical" for which she won a Laurence Olivier Award for Best Actress, and Janet Hodgson in "The Enfield Haunting", for which she received a British Academy Television Award nomination.  Worthington Cox is the youngest recipient of an Olivier Award at the age of 10.

Stephen Mear: Stephen Mear (born 1964) is an English dancer and choreographer best known for his award-winning work in musical theatre.  In 2005, Mear and co-choreographer Matthew Bourne won the Laurence Olivier Award for "Best Choreography", for their work on the new West End musical "Mary Poppins".  This production later transferred to Broadway in 2006, being nominated for the Tony Award for "Best Choreography" in 2007.  Most recently, Mear choreographed the new Broadway musical of Disney's "The Little Mermaid" (2007–08).  In recognition of his achievements, in 2007 Mear was the recipient of a Carl Alan Award, an award voted for by leading dance organisations in the United Kingdom.  In 2010, Stephen Mear won a Laurence Olivier Award for best Theatre Choreographer for his work on Hello Dolly at the Open Air Theatre, Regent's Park, he was also a choreographer for "So You Think You Can Dance (UK)", in the category broadway.

Secrets (1973 play): Secrets is a 1973 BBC Television play by Michael Palin and Terry Jones of one-hour duration, starring Warren Mitchell as the owner of a chocolate factory.  The play was part of a series called "Black and Blue", which featured black and blue (saucy) comedy.

Laurence Olivier Award for Best Actress: The Laurence Olivier Award for Best Actress in a Play is an annual award presented by The Society of London Theatre in recognition of achievements in commercial British theatre.  The awards were established as the Society of West End Theatre Awards in 1976, and, renamed in 1984 in honour of English actor Lord Olivier.

The Priory (play): The Priory is a play by Michael Wynne that opened at the downstairs theatre of the Royal Court Theatre in London in 2009.  The production starred Jessica Hynes, Rupert Penry-Jones, Charlotte Riley, Alastair Mackenzie, Joseph Millson and Rachael Stirling.  After receiving good reviews, its run was extended.  Michael Wynne won the Olivier Award for 'Best New Comedy' for "The Priory".  Stirling was nominated for a Laurence Olivier Award for Best Performance in a Supporting Role for her role as Rebecca.

Warren Mitchell: Warren Mitchell (born Warren Misell; 14 January 1926 – 14 November 2015) was an English actor.  He was a BAFTA TV Award winner and twice a Laurence Olivier Award winner.

Goodnight Mister Tom (play): Goodnight Mister Tom is a play by David Wood, based on the children's novel of the same name by Michelle Magorian.  The play earned the Laurence Olivier Award for Best Entertainment at the 2013 Laurence Olivier Awards.

Ken Stott: Kenneth Campbell "Ken" Stott (born 19 October 1954) is a Scottish stage, television and film actor who won the Laurence Olivier Award for Best Actor in a Supporting Role in 1995 in the play "Broken Glass" at Royal National Theatre.  He is more recently known for his role as the dwarf Balin in "The Hobbit" film trilogy (2012–2014), and as Ian Garrett in the 2014 BBC TV mini-series "The Missing" starring alongside James Nesbitt.  His many notable roles in UK television include the role of Edward 'Eddie' McKenna in the Scottish BBC miniseries "Takin' Over The Asylum" (1994) co-starring with a young David Tennant, the title character DI John Rebus in the crime fiction-mystery series "Rebus" (2000–2007) and also as DCI Red Metcalfe in "Messiah" (2001–2008).

Laurence Olivier Award for Best New Play: The Laurence Olivier Award for Best New Play is an annual award presented by The Society of London Theatre in recognition of achievements in commercial British theatre.  The awards were established as the Society of West End Theatre Awards in 1976, and renamed in 1984 in honour of English actor Laurence Olivier.

Sheila Hancock: Sheila Cameron Hancock, CBE (born 22 February 1933) is an English actress and author.  Hancock trained at the Royal Academy of Dramatic Art before starting her career in repertory theatre.  Hancock went on to perform in plays and musicals in London, and her Broadway debut in "Entertaining Mr Sloane."  (1966) earned her a Tony Award nomination for Best Lead Actress in Play.  She won a Laurence Olivier Award for Best Performance in a Supporting Role in a Musical for her role in "Cabaret" (2007) and was nominated at the Laurence Olivier Awards four other times for her work in "" (1980), "The Winter's Tale" (1982), "Prin" (1989) and "Sister Act" (2010).

Supporting paragraphs: Secrets (1973 play) Warren Mitchell
Answer: twice