Currently available on 2 streaming services.

Animaniacs - watch online: streaming, buy or rent

You are able to buy "Animaniacs" on Amazon Video, Apple TV as download.

Cast

Rob Paulsen
Yakko / Pinky (voice)
Jess Harnell
Wakko (voice)
Tress MacNeille
Dot (voice)
Maurice LaMarche
The Brain / Squit (voice)
Sherri Stoner
Slappy Squirrel (voice)
Chick Vennera
Pesto (voice)
John Mariano
Bobby (voice)
Nathan Ruegger
Skippy Squirrel (voice)
Nancy Cartwright
Mindy (voice)