no ones scottish and ones english..
They look nothing alike… And David is so much better looking than Callum! There is nothing online anywhere that mentions them being related… Callum Blue is English. In fact his ancestors can be traced back to some of the first Roman settlers in England. David Tennant (David McDonald is his real name) traced his family tree in an episode of BBC One’s genealogy series Who Do You Think You Are? And among his Scottish and Irish background there was no mention of any English blood in the lines.
No they look completely different i only looked at Callum Blue’s picture and he looked nothing like david tennant and anyway david is scottish,and Callum Blue is english
Perhaps distantly? David is actually Scottish and Irish