A hobbit from Hobbiton who became a shirriff six years before the start of the War of the Ring as it gave him a chance of walking round the country, seeing folk, hearing news, and knowing where the good beer was.

When Lotho Sackville-Baggins took over the Shire with the help of Sharkey, Robin (called Cock-robin by Sam) became part of the first Eastfarthing troop that attempted to waylay Frodo and his companions.