Roy has a long white beard and does not talk. He should not be confused with Old Rob Roy but like Inigo Jollifant, might have drunk some. Should he ever demonstrate any semblance of personality or opinions he might very well be described as eccentric due to the rebellious way he tucks his trousers into his socks, and the jaunty manner with which he ports his anorak.
See also: Roy's friend, beards, Whisky.