no, all of them do not have cutscenes..
Xandra and Kahmu are gotten during the norn tournament with magni so there is no cutscene with that, Hayda is gotten thru a side quest as well--no cutscene, but if you do her quest while you do finding gadd she will show up. Anton is another side quest, nothing but dialog boxes for him.
So I think its only the 6 core professions (vekk, ogden, gwen, jora, pyre, and livia) that get their own cutscenes. And ogden, vekk and gwen will show up in almost all of them since they are 'recruiting' for the fight vs the destroyers.
where is the 'all you can eat' cookie bar?