Congratulations to @Kanaya_Ampora for guessing the last cat. It was Firestar! That was pretty easy, so hear is the next one.
A strange illness filled the land
From liquid spilled by tools
And sooner than later I died at the hand
Of the water from the pools
Another cat caught my disease
From burying my pelt
From this illness there is no ease.
No cure for the Twoleg welt
Who am I?