Two of them are from Gwent, James Nutley, from Caldicot, and Jaymie James, from Pontypool.
If you have seen or have information about them, you can contact Missing People anonymously by calling 116 000, emailining 116000@missingpeople.org.uk or complete an online sightings form at: https://www.missingpeople.org.uk/sightings-and-giving-information.
The charity will pass this directly to the investigating police force and they don’t need to tell them who you are.
James Nutley
James, from Caldicot, was last seen on October 24, 2004 in Tenby.
He was 25 at the time and disappeared without a trace while on a golfing break in Pembrokeshire with friends.