Yes, he's an extra in it and if you screenshot it, you see his 10th doctor glasses and his side burns. Also his full body resembles David Tennant's.
My theory is that when 11 gets in to the bus, he says, "it's okay, it's only me," as if he already knows the man in the bus. So in that dream world, 11 is basically crossing his own personal timeline, seeing as anything is possible.