As the title of the post says, does anyone remember any animated series that have killed characters during their run? Even aside from Pilots and Finales, which can “bend” the standard of tv norms a little? (Even “Darkwing Duck”, a Disney series, mentioned a character being “eliminated” during it’s pilot)
The only series I could think of was a little show called “Mighty Max.” Cheap syndicated spin-off from a toy line and all, they still had the guts to kill off THREE guest characters during one episode. And they were “Good Guys,” too.
And, for the purposes of this question, Anime doesn’t count. Too easy.