The son of Australia's bowling coach Craig McDermott is to join Hampshire's Elite International Cricket Academy.
Wicketkeeper Ben McDermott is joined in the squad by former Australia coach John Buchanan's son - fast bowler Nick.
Fast bowler Cameron Valente as well as batsmen Damien Mortimer and Jaron Morgan also arrive for the 2014 season.
Spinner Ashton Agar, a member of the 2013 intake, hit the headlines after his shock call-up by Australia for the first Ashes Test against England.
As part of the programme, the left-armer was playing for Thames Valley Premier League side Henley CC before he went on to hit the highest Test innings ever by a number 11 on day two of the match at Trent Bridge.