The source added: “With 10 days to himself, no camera crews or production around, he shot some unbelievably raw footage – some of it makes for tough, emotional viewing.
“But he wanted a chance to share his story, unedited and honest, and let viewers see another side to him.
“Whilst this is a massive coup for Channel 5, and huge for Phillip, he’s in no rush to come back to TV full-time yet; he remains very bruised, and is just taking some time now to weigh things up before he makes any major decisions.”
Schofield is following in the footsteps of Joanna Lumley and Ruby Wax on the programme, which airs on Monday night.
On its social media pages, Channel 5 posted a short clip of Phillip walking across a remote beach with the words: “A celebrity marooned on an uninhabited tropical island for 10 days is challenged with total isolation, the forces of nature and the battle within his own mind.”