Beast Wars: Transformers - Season 1 - Eps 21: Possession
During a fierce storm, the immortal spark of the Deception Starscream lands on the planet and takes control of Waspinator's body. He convinces Megatron to let him help with an attack on the Maximal base, which he knows to be offline. His skills are after all considerable... but then again - so is his treachery.
About Beast Wars: Transformers

Title: Beast Wars: Transformers
First Air Date: 1996-04-22
Last Air Date: 1999-05-07
Status: Ended
Rating: 8.131/10 (from 291 votes)
Language: EN
Seasons: 4
Total Episodes: 52
Network: YTV Syndication
Genres: Animation, Action & Adventure
Production Companies: Mainframe Entertainment, Hasbro, Alliance Atlantis, Alliance Films
Synopsis
Two spaceships, one manned by benevolent Maximals, the other by evil Predacons, crash-land on a pre-humanoid planet while en route to Earth. Their crews assume indigenous animal forms to protect themselves from an overabundance of natural energy, transforming into robots to do battle. Thus, the Beast Wars have begun...
Cast

Garry Chalk
Optimus Primal (voice)

David Kaye
Megatron (voice)

Colin Murdock
Quickstrike (voice)

Scott McNeil
Dinobot / Rattrap / Waspinator (voice)

Ian James Corlett
Cheetor (voice)

Richard Newman
Rhinox (voice)

Venus Terzo
Blackarachnia (voice)

Jim Byrnes
Inferno (voice)

David Sobolov
Depth Charge (voice)

Campbell Lane
Rampage (voice)