Celebrities from across the UK are taking part in the football match, which is taking place in May at Birmingham City Football ground.
The match, which has been organised by the mother of Harry Moseley, is intended to raise funds and awareness of Harry's work, which has now helped many people with similar conditions.
Lee Latchford-Evans from pop group Steps said Harry was a special boy and his work must continue.
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More than 800 Shakespeare scholars from over 48 countries are gathering in Stratford Upon-Avon and London.
It comes as figures show there has been a rise in trespassing in the last three years across the West Midlands.
“He is thoroughly ashamed and was a very lonely man at the time he committed these offences"