Three teenagers have been arrested in Cowes, as reported first by Isle of Wight Radio.
On Friday (20) police were called to reports of an attempted robbery outside Trinity Theatre.
Hampshire Constabulary says the caller reported three boys demanding money from him before one of the boys assaulted him.
Officers have arrested two 15-year-old boys and a 16-year-old boy on suspicion of attempted robbery.
President of the Trinity Theatre confirmed to Isle of Wight Radio, a volunteer member of the cast was assaulted after the show on Friday evening.
Investigations are continuing.
Anyone with information should call 101 quoting crime reference number 44190430610.