Hi G.Khan
Sorry for the delay, I have too many posts to follow on here I can never remember which I have posted in and which I haven't and then have to go hunting through my profile to find the ones I have.
I just guessed it was the captain because he was up the stairs, set his bag outside the a/c door, then a few moments later came down and used his mobile. Just the bag made me think that he had come from the US and suppose the 4stripes just made me assume captain.
Seems the others have beaten to the answer rjemery
Every airline has its own callsign, not all have anything to do with the airlines' but some do, Eg British Midland is Midland, but Air2000 is Jetset, and MyTravel is Kestrel.
I know about the Jakarta incident, and all the paint was burned off the aircraft and the pilot/cpt only had a small patch which he could see through to land. Bet on the next few flights they were hesitant to fly through a grey cloud lol.