WL_southerner wrote:there hair, eyes and skin colour say no
but a lot of scholarly opinion says 'yes' I'm afriad. This is a major theory supported by many, and it is pretty convincing. There is some evidence that the Celts were Circaesir from Circaesya, who lived on the 'Sea of Grass' in what is now Kazakhstan.
As for this:
black hair wrong colour skin where killed in britain when the roman troops left
It may have been the case in a few incidents but certainly not in general. Any sources whatsoever? Sounds a bit like you've been reading a 'Romans' kids history book type of thing.
Also, off topic, is English your first language southerner?