After a month or two and redoing it, it's here, you would be surprised of how many people and creatures Pixar has killed off, that's quite a lot of carnage for a family animation studio.

Side note: Every named or known character will be on the right, and if a character doesn't have a name or are just a enemy they will be in specific categories for how many there are.
Even minor animals, bugs, and robots are included here.
Any character that gets revived still counts.

Movies in order:

Toy Story (1995) 0:00
A Bug's Life (1998) 0:19
Monsters Inc. (2001) 1:06
Finding Nemo (2003) 1:26
The Incredibles (2004) 2:02
Ratatouille (2007) 5:52
WALLE (2008) 6:25
Up (2009) 8:05
Cars 2 (2011) 8:58
Brave (2012) 10:38
Inside Out (2015) 10:57
The Good Dinosaur (2015) 11:45
Finding Dory (2016) 12:47
Coco (2017) 12:59
The Incredibles 2 (2018) 14:06
Onward (2020) 14:24
Soul (2020) 14:40
Offscrean 15:05
Summary 15:50
Total 19:11
Named Deaths 19:31

The movies belong to Disney and Pixar, I own nothing.