Are the aliens in The Next Generation different from those on Deep Space Nine or Voyager?

The aliens in The Next Generation were, I would say, an overall look, soft and smaller. When Deep Space 9 came along I was able to expand, because we had the promenade and we wanted to put more into the promenade.

There's a single episode in Deep Space where, on a single day, I had five hundred aliens working. It was very aggressive in the amount of aliens that we would punch into it.

When The Next Generation and Deep Space 9 overlapped it was quite a large undertaking, because the pilot for Deep Space 9 was Cardassians, which were full make-ups, and Bajorans, which is even noses, but it meant everybody, everybody had something on.