which Scottish accent is this?

[unixken]

I know little about Robbie Coltrane, but I note two things when I listen to him. One, there does appear a trace of educated twang to his speech which implies a good upbringing and better than average school perhaps a public school?(private school to those outwith the UK)

But of course... Hogwart's School of Witchcraft and Wizardy.