dan curtis seemed keenly aware of how to "brand" certain elements of this series in immediately identifiable ways.
with barnabas it was the onyx ring,the wolfhead cane and that inverness cape.he's wearing them in virtually all of the publicity photos even though much of the time the character was just seen wearing a suit.they're part and parcel of the character's "brand".
with quentin it was those sideburns,the gramophone and that funky victorian room.one of the many things that irritated me about quentin after 1897 was that they stuck him back in that room.it never made any sense plotwise but it was part of the character's "brand" and curtis seemed to want to market the character in as an arresting a way as possible and that was it.so i'm not surprised to hear that he was the second biggest player in the marketing juggernaut.
i think that's why david selby's characters were always called "quentin" whether or not series continuity backed that up.it's also interesting that the character was continually marketed in the werewolf guise given that after 1897 he was never in that form again.
julia appeared in far more episodes that quentin ever did and was more important to several plots but i guess a middle aged suit wearing lady doctor is harder to market and not as easily identifiable...especially to those kids that you know what.
are we talking about the ross novels here?i'm very surprised to hear that angelique only appearred in one.she was a pretty major player but thoses novels were pretty loosely connected to what was actually happening on the series itself.