Yep, at least a counter or indicator showing which ones are up. In the chaos that occur in the bigger fights with Necromancers it's easy to lose sight of the Feeders and Hunters, and even the Parasite.

I agree pet health bars would be nice. Would also be nice to be able to command our pet to target/attack "x".

Or at the very least, attack enemies when you do.
Minion AI is very bad. I often have to walk them through enemies to get them to engage.

Parasite minions are painfully passive.

Hello Devs!,
Me and many others plaers miss a lot for more information about our pets. I miss information such as: how many Zombies are still alive, how much health they have left, or my Pet-Tank will die soon, etc. Dear Devs, please implement these game facilities, Regards

Yeah, I've stopped using Parasite simply because it seems pointless. I really like using it to capture the guys that spawn zombies but they only do it for a while, then they won't spawn anymore. Most of them are broken, so I switched to a different spell.