Cas frowned at the strange blue light, but tolerated it, if only because he remembered it from before. Both versions of the Doctor whether it was the one standing before him or the smaller one with the somewhat unstable personality both carried it. "Yes, so I've been told," he said, somewhat irritably.
He'd also expected the man to have something of an attitude given his displeasure over the battle that had ensued last they spoke, but human or not, Cas had little patience for those who displayed their own impatience. "I'm looking for someone," he said, reaching into his jacket for the photograph.
It was old - something that had been taken of Sam, Dean, and himself on a hunt and given to him. The girl had been a photographer and at the time, it had made little sense since he'd not found anything special about the parking lot they'd been in or the fact that they'd merely saved her from a routine vampire attack, but it had seemed to delight her. "This man," he said pointing to the one in question. "His name is Dean Winchester. It would seem he too he is here, yet none of us have heard from him."
He doubted the Doctor would be of much assistance. If anything, he seemed to have preoccupations of his own.