In season one of The Mandalorian, the characters who die include Kuill, IG-11, and several unnamed Stormtroopers and mercenaries.
How about season 2
In season 2 of The Mandalorian, some of the characters who die include Moff Gideon (though he is ultimately captured), Boba Fett, Koska Reeves, and several unnamed Stormtroopers and Dark Troopers. Additionally, the Razor Crest is destroyed in an epic battle.
