When the film makers get around to making live versions of the Witch books instead of those silly cartoon versions I vote for Eileen Atkins to play Granny Weatherwax

Any suggestions for Nanny Ogg?

Sorry if this has been done before, i am new!

Never heard of her, now is everyone totally sure there's nothing to be said for Angelina Jolie as Granny Weatherwax?

Actually if you read closely Granny is probably a very attractive woman, she despairs of having a truly witch like face,onlyher inner witch is so strong no one questions her witchness. I was thinking of someone like Vanessa Redgrave myself.

Dame Eileen Atkins

BBC - Press Office - Cranford: Dame Eileen Atkins plays Miss Deborah Jenkyns

was very good in Cranford on the BBC and does have the right look. But I must admit to not having seen her in anything before this (well, not that I remember).

She doesn't look big enough, too frail.

I don't know, she looks perfect for the part in that link, and I think in one of the feegle books she's described as not being very tall, she just acts like she is.
And sorry but I just can't imagine angelina with grey hair

Angelina?

Angelina Jolie, maljonic's suggestion

That'll teach me to only look at the last post... and get more sleep.