Currently available on 2 streaming services.

Streaming, rent, or buy Transformers: Animated – Season 3:

You are able to buy "Transformers: Animated - Season 3" on Amazon Video, Apple TV as download.

Cast

David Kaye
Optimus Prime (voice)
Bumper Robinson
Bumblebee (voice)
Corey Burton
Ratchet / Megatron (voice)
Bill Fagerbakke
Bulkhead (voice)
Jeff Bennett
Prowl (voice)
Tara Strong
Sari Sumdac (voice)
Tom Kenny
Isaac Sumdac (voice)
Phil LaMarr
Jazz (voice)