It's definitely not him - the accent isn't even the same.
He did used to do comedy stuff - mostly taking the piss out of various religious loons but it was sometimes quite funny.
Don't understand why he's still considered a comedian though, doesn't even try to be funny since he got a massive bee in his bonnet about Islam, started promoting Geert Wilders and joined UKIP.
Unless Dawkins just hasn't watched any of his stuff for a couple of years the fact he still endorses Condell is quite revealing IMO.