Aaron Alexander Barschak (born 1966 in Southwark, London) is an English self-styled "comedy terrorist" and fringe UK politician. In 2003, he attracted media attention by gatecrashing Prince William's 21st birthday party.

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Aaron Barschak was born in 1966 and grew up in Hampstead in North London attending City of London School where he learnt French and Spanish.l^[1][2] After leaving school, Barschak travelled to Bolivia working at importing Western pop records and later moved to New York to study acting.^[2]

Barschak came to public attention on 21 June 2003 when he gatecrashed Prince William's 21st birthday party at Windsor Castle whilst wearing a pink dress, a false beard and a turban in a fashion similar to Osama bin Laden. He scaled the walls of the castle and entered William's party. He was arrested shortly after storming reaching the stage where William was giving a speech. Barschak was not prosecuted.^[3][4][5][6] The intrusion triggered a police investigation into the security breach.^[7]

Barschak appeared for a three-week run at the Underbelly venue at the 2003 Edinburgh Fringe with a show entitled Osama Likes It Hot co-written with Brendhan Lovegrove,^[8][9]

Barschak stood as candidate at the Brent East by-election of 2003 gaining 37 votes. He stood again in Witney in the 2010 General Election, against the leader of the Conservative Party with 53 votes.

In 2003 Barschak was found guilty of causing criminal damage and imprisoned for one month after he threw a bucket of red paint over the artist Jake Chapman apparently in protest (albeit in a suitably parodic form) over the latter's vandalism of a series of original prints of Goya's The Disasters of War.^[10][11]

In 2005, he was arrested and bailed following an incident in Wapping.^[12]