It's funny how often this question comes up: how tall are Bradley James & Colin Morgan?
There's no verified information available on the internet so it's time for frenzied speculation. :D
So, here'a pic of the whole cast and if Bradley wouldn't bring down lay his arm around Colin's shoulders so possessively you would see that Colin is a bit taller than Bradley. You can also see that Anthony Head is taller than Bradley (poor darling *pouts* ), 'only' Richard Wilson and the girls are smaller than our beloved prince. :D
Well, when we check IMDb for information 3 heights of Merlin actors are stated.
Anthony Head - 1,85m (6'1'')
Santiago Cabrera - 1,83m (6')
Richard Wilson - 1,80m (5'11')
Time for more pics now:
Colin & Richard - Colin is distinctly taller than Richard. So he's definitely taller than 1,80m. *check*
Colin & Santiago - even though Colin is slouching a bit he's a bit taller than Santiago and consequentely taller than 1,83m. *check*
Tony & Colin - even though Tony presses Colin down a bit they look equally tall in this pic. So I think Colin could be 1,85m. *check*
Bradley & Tony - it's hard to say but Tony's a bit taller than Bradley. So Bradley's not 1,85m. *check*
Bradley & Santiago - they look equally tall, so Bradley could be 1,83m. *check*
Now I'm proud to announce the officially approved height for Bradley James with 1,83m (6') and Colin Morgan with 1,85m (6'1''). :D