Do henchmen suffer from death penalty?

like players do... You know -X % from HP/Energy

Oh yes, they most certainly do.

I see, now I get it, why I get owned so easily. Thank you mate!

What about pets? I was wondering that yesterday? Anybody know this?

Pretty sure every living thing suffers DP if they die.

No, Pets dont suffer DP.

I was running around outside ToA a while back, and through
a series of mis steps got claude killed four times. I noticed
that, from that point on, every time we went through the poison
water his health would go down faster than everyone else's.
So.. yeah they do.
What I haven't been able to figure out is whether they recover
from it or not like we do.