Question: The English actor Alex Macqueen appeared in which sitcom along with David Mitchell?

Context paragraphs:
Adrian Fletcher (character): Adrian "Fletch" Fletcher is a fictional character from the BBC medical dramas "Casualty" and "Holby City", portrayed by actor Alex Walkinshaw.  He first appeared in the twenty-sixth series episode "Zero Sum Game", broadcast on 7 July 2012.  Fletch was a Staff Nurse in Holby City Hospital's emergency department upon his arrival, but was promoted to Senior Staff Nurse in 2013.  On 1 April 2014, Walkinshaw announced his departure from "Casualty", but revealed that he would be reprising his role as the ward manager of the fictitious AAU ward in spin-off show "Holby City".  Fletch departed "Casualty" on 29 June 2014 and made his debut on "Holby City" on 12 August 2014, over six weeks later.  Walkinshaw reprised his role in "Casualty" for the 30th anniversary episode "Too Old for This Shift", which aired on 27 August 2016.

Alex Macqueen: Alexander Tulloch Macqueen (born 30 November 1973, Epsom, Surrey) is an English actor.  He has appeared on television, film and radio in the UK in productions such as "Holby City", "Hut 33", "Peep Show", "The Thick of It", "Keeping Mum", and "The Inbetweeners".

Peep Show (TV series): Peep Show is a British sitcom starring David Mitchell and Robert Webb.  The television programme is written by Jesse Armstrong and Sam Bain, with additional material by Mitchell and Webb, among others.  It was broadcast on Channel 4 from 2003 until 2015.  In 2010 it became the longest-running comedy in Channel 4 history in terms of years on air; however, Desmond's still holds the records for most episodes (71 versus Peep Show's 54).

The Hide: The Hide is a 2008 film, the debut from director Marek Losey, who previously had an award-winning career as a director of advertisements.  The film starred Alex MacQueen and Phil Campbell, based on the stage play "The Sociable Plover" by Tim Whitnall, who also wrote the screenplay.  The film had the strapline "No Crime Stays Hidden Forever".  Produced by Christopher Granier-Deferre and John Schwab.

Mitchell and Webb: Mitchell and Webb are a British comedy double act, composed of David Mitchell (born 14 July 1974) and Robert Webb (born 29 September 1972).  They are best known for starring in the Channel 4 sitcom "Peep Show" and their sketch show "That Mitchell and Webb Look".  The duo first met at the Footlights in 1993 and collaborated for the 1995 Revue whilst studying at the University of Cambridge.

David Mitchell: Back Story: David Mitchell: Back Story is an autobiography by the British actor, comedian and writer David Mitchell.  The book was published in October 2012.

David Warbeck: David Warbeck (born David Mitchell; 17 November 1941 – 23 July 1997) was a New Zealand-born English actor and model best known for his film roles in Europe.

Robert Webb: Robert Patrick Webb (born 29 September 1972) is an English comedian, actor and writer, and one half of the double act Mitchell and Webb, alongside David Mitchell.  The two men are best known for starring in the Channel 4 sitcom "Peep Show" and the sketch comedy programme "That Mitchell and Webb Look".

Neil Fitzmaurice: Neil Simon Fitzmaurice (born 20 August 1969 in Liverpool) is an English actor, comedian and writer.  He is perhaps best known for his acting role as Jeff, the love rival for David Mitchell's character Mark, in the Channel 4 sitcom "Peep Show", but has written for a number of other shows, including "Peter Kay's Phoenix Nights" (in which he also starred) and "Benidorm".

Beauty and the Geek (UK TV series): Beauty and the Geek is a reality television show, first aired in the United Kingdom on E4 on 7 February 2006, following the success of the format in the United States, and was advertised similarly as "the Ultimate Social Experiment".  The first series ended on 14 March, and was repeated on Channel 4 beginning on 31 March.  There is no host per se, although voiceovers are provided by David Mitchell of "Peep Show" fame and the physical actions normally requiring a host are performed by a silent "butler" known as "Gates" (actor Alex Purves).

Supporting paragraphs: Alex Macqueen Peep Show (TV series)
Answer: Peep Show