25-year-old Thomas Cattley was last seen leaving home at 2.40pm on Friday 2 March.
He was last seen wearing a dark blue sweatshirt, dark blue jeans and a black Barbour quilted jacket with a cord collar and no hood. He also had grey and purple Adidas trainers with a white stripe.
Police are growing increasingly concerned for Thomas’ welfare, as this behaviour is out of character.
It is believed he travelled by train to London, and police enquiries are currently taking place there.
A police appeal on Facebook to locate Thomas has been shared more than 2,500 times, and officers are grateful to members of the public for their assistance.
Anyone with information about Thomas’ whereabouts should contact North Yorkshire Police on 101, select option 1 and quote reference number 12180036670.