Millionaire businessman Gavin Wheeldon came back to the town where he spent many childhood holidays to look for worthy causes as part of a Channel 4 series.
He spent 10 days working undercover and living in a local bed and breakfast while searching for local people and organisations he could help.
Mr Wheeldon will return to Rhyl on Friday for the official re-launch of local bookshop, The Next Chapter.
One organisation that Mr Wheeldon helped, but did not make it onto the programme was Future Builders Charity Bookshop, Toc H, owned by Lyn Edwards.
Toc H is a charity bookshop which sells donated books and also provides a retail training course for the unemployed.
Recently, the bookshop's funding came to an end and in an attempt to keep the bookshop from closure, Mr Wheeldon joined the board of directors and donated £10,000 to cover the next year's rent and a complete re-launch.
Since meeting Lyn in June of this year, Mr Wheeldon has been in regular contact with the bookshop helping prepare for the re-launch.
Lyn said: "Gavin is such a genuine man who understood immediately the plight of the local community in Rhyl and will be a great asset to the Board. We look forward to working with him."
The shop has been re-branded with new name The Next Chapter and has now got a new website where customers can browse all books online.