Love Island winner Amber-Rose Gill didn't apply to be on the show through the general application process.
The latest report comes after it emerged that only six out of the 36 Islanders were selected through this way and the rest were cast by professional agents.
Despite 85,000 people applying for the show, people only had a 0.007% chance of getting onto the show through the application process.
According to The Mirror, Amy Hart, 26, Michael Griffiths, 27, Ovie Soko, 28 and Joe Garratt, 22, all applied via these channels.
But Amber, Greg O'Shea, 24, Sherif Lane, 20, were all scounted by producers.
Curtis Pritchard, 23, and Tommy Fury, 20, both had agents who helped to get them on the show.
An ITV source told the site: 'Having agents beforehand can be beneficial for the contestants, as they've got a better understanding of what to expect when they come off the show.'
Love Island: A DCMS eport has found that only 16% of this year's 36 Islanders were chosen through the application process... (the rest were cast by the team or professional agents)
In written evidence for the Digital, Culture, Media and Sport Committee report, ITV chief executive Dame Carolyn McCall said: 'On series five of Love Island to date (15 July), there have been 36 contributors.
'24 were found and cast by the programme's casting team, six were put forward by professional agents, and six came through the general application.'
MPs on the Digital, Culture, Media and Sport committee investigating reality TV had queried how many of the show’s contestants had been approached by members of the casting team in relation to the number that had applied.
A source who provides talent for the show told MailOnline: 'I'm always on the lookout for attractive people who might fit the bill for Love Island.'
A source who provides talent