Police today released images of two men they want to speak to after the incident last Thursday outside the fish and chip shop on Albion Road.
The youngster, from South Yorkshire, was attacked by a brindle-coloured Boxer just after 6.10pm.
He was taken by ambulance to Scarborough Hospital before being transferred to York.
Police said he suffered "significant" facial injuries which required plastic surgery.
Anyone with information is asked to contact police on 101.