Question: Cabin Pressure is a radio sitcom written and created by John Finnemore, the show stars include Benedict Cumberbatch, an English actor who has performed in film, television, theatre and radio, and the son of which actors?
Context: Anthony Stewart Head (born 20 February 1954) is an English actor and musician.  He rose to fame in the UK following his role in the Gold Blend couple television advertisements for Nescafé Gold Blend, and is known for his roles as Rupert Giles in "Buffy the Vampire Slayer", Uther Pendragon in "Merlin", the Prime Minister in "Little Britain", and as Herc Shipwright in BBC Radio 4's "Cabin Pressure". John David Finnemore (born 28 September 1977) is a British comedy writer and actor, best known for his radio sitcom "Cabin Pressure" and his radio sketch show "John Finnemore's Souvenir Programme", as well as for frequent appearances on other BBC Radio 4 comedy shows such as "The Now Show".  Finnemore is noted for winning more Comedy.co.uk Awards than any other writer. Electric Ink is a BBC Radio sitcom written by Alistair Beaton and journalist Tom Mitchelson.  It stars Robert Lindsay in series one and John Sessions in series two as Maddox Bradley, a 56 year old political journalist at an unnamed broadsheet newspaper that is heading down-market as the circulation numbers drop and budgets are cut.  It also maintains an online presence which chases viewers with commercially lucrative "fluff" pieces, blogs, online comments and vodcasts.  Alongside the new media aspect, other focuses of the storyline include journalistic ethics and integrity, and the viability of print media. Cabin Pressure (also known as Hijack'd and Autopilot) is a 2002 Canadian action film.  The made-for-television film was broadcast in 2003 and released to home media shortly after.  "Cabin Pressure" reunited Craig Sheffer and John Pyper-Ferguson (who appeared together in the 1994 movie "Roadflower").  The film also featured Canadian voice actor Michael Kopsa. That Mitchell and Webb Look is a British sketch comedy television show starring David Mitchell and Robert Webb.  As well as Mitchell and Webb themselves, the writers include Jesse Armstrong, James Bachman, Sam Bain, Mark Evans, Olivia Colman, Joel Morris, John Finnemore, and others.  It is produced by Gareth Edwards.  Colman, Bachman, and Evans were also members of the cast, alongside Gus Brown, Sarah Hadland, and Paterson Joseph.  The first two series were directed by David Kerr, and the third and fourth series were directed by Ben Gosling Fuller. The English actor Benedict Cumberbatch has performed in many films, television shows, theatre productions, and recorded lines for various radio programs, narrations, and video games.  He first performed for The New Shakespeare Company at Open Air Theatre, Regent's Park for two seasons.  He later portrayed George Tesman in Richard Eyre's revival of "Hedda Gabler" in 2005 and since then has starred in the Royal National Theatre productions "After the Dance" (2010) and "Frankenstein" (2011).  In 2015, he played William Shakespeare's "Hamlet" at the Barbican Theatre. John Finnemore's Double Acts is a series of radio comedy programmes, written by John Finnemore.  It is an anthology series of largely unconnected two-handers. Safety Catch is a sitcom on BBC Radio 4 created by Laurence Howarth and written by Howarth and John Finnemore.  The series was first broadcast in 2007.  It is about Simon McGrath (played by Darren Boyd), a man who works in a job that he does not like – the arms trade.  The show mocks issues of morality, although Howarth claims that the show is not satirical.  Because of the subject matter and the light-hearted way it is treated, the series is one of Radio 4's most controversial.  A second series was broadcast in April 2009. Cabin Pressure is a radio sitcom written and created by John Finnemore and directed and produced by David Tyler.  It follows the exploits of the eccentric crew of the single aeroplane owned by "MJN Air" as they are chartered to take all manner of items, people or animals across the world.  The show stars Finnemore, Stephanie Cole, Roger Allam and Benedict Cumberbatch.  The series was first broadcast on BBC Radio 4 in 2008. Benedict Timothy Carlton Cumberbatch CBE (born 19 July 1976) is an English actor who has performed in film, television, theatre and radio.  He is the son of actors Timothy Carlton and Wanda Ventham.  Cumberbatch graduated from the University of Manchester and continued his training at the London Academy of Music and Dramatic Art, obtaining a Master of Arts in Classical Acting.  He first performed at the Open Air Theatre, Regent's Park in Shakespearean productions and made his West End debut portraying George Tesman in Richard Eyre's revival of "Hedda Gabler" in 2005.  Since then he has starred in the Royal National Theatre productions "After the Dance" (2010) and "Frankenstein" (2011).  In 2015, he played William Shakespeare's "Hamlet" at the Barbican Theatre.
Answer: Timothy Carlton and Wanda Ventham