How big is the staff and how many are on the take with the whole "guests-turned-to-exhibits" thing?

Hello DukeDisappointed,

There are six staff overall which were introduced in Season 4.

They each have their own reasons for joining the Zoo but the only one completely on board with turning the guests into animals is Carol.

Samuel and Harold are willing to go through with it but are more reluctant to do so.

The others (Sakura, Dominic & Valeria) are not on board with the idea if not outright hating it. However, they feel trapped for one reason or another and feel forced to go along with it.