Here are the animatronic characters in the order they die
Foxy as Ozzie
Bingo from the banana splits movies as Gus
Spongebob as Knighty
Tom cat as Arty
Circus baby as Cammy
Bugs bunny as Willy
This Dot warner as Siren Sara
And Snorky as Tito turtle
the human characters
Enid from ok ko lets be hero's as the janitor
Blossom from power puff girls as liv
Unikitty and cyan from just shapes and beats as the couple
Circle from just shapes and beats as the dude who died from knighty
Boyfriend as the dude who died from Cammy
Pico as the dude who got eaten by Siren and Tito
Cube as the girl who died from Willy
Blixer and master frown as the dudes who died from Siren