Giovanni is the leader of Team Rocket. His scientists created Mewtwo so he can trained him but Mewtwo left Giovanni for nothing but Giovanni found Mewtwo at a place called Purity Canyon he recapture him so he can take over the world with his member Domino (009) but Ryan and the gang save Mewtwo and his cloned Pokémon from Giovanni's evil hands but Mewtwo erased Giovanni's memory from destroying Purity Canyon now Giovanni is after Ryan, Pooh, Simba, Ash, Stan, Alvin, Littlefoot, Bobby Brady, SpongeBob and the rest of the gang for revenge.
- He is voiced by Ted Lewis.
- Ted Lewis (Episodes 15-406, 546-present) - English
- Craig Blair - (Episodes 468-509) - English
- Hirotaka Suzuoki
- Kenta Miyake
- Alejandro Villeli
- Sander de Her
- Just Meijer (Frist Movie(
As The Ringmaster in Kitana (Dumbo)
As Jafar In Aliceladdin, Aliceladdin 2: The Return of Giovanniafar, Hiccupladdin, Hiccupladdin 2: The Return of Giovanniafar and Ashladdin (PokemonFan Style)
He is a Sorcerer
As The Shredder in Teenage Mutant Ninja Mice
He is a Shredder
As Van Pelt In Jumanji (PokemonFan Style)
He is a Demon Cat
As Mr. Waternoose In Wild Humans, Inc.
He is a Spider-Like Monster
As Captain Hook In Leo Pan, Fox Leo Pan and Team Rocket, Giovanni (Hook), Hans (Frozen)ef In Ash Pan and Fox Ash Pan and the Villains
He is an Indian
As Professor Ratigan in The Great Pokémon Trainer Detective
He is a Rat
As Clavius In The White Cat Princess 2: Escape from Castle Mountain
He is a Sorcerer
As Rasputin In Rapunzelstasia
He is a Sorcerer
As Dr. Facilier in The Princess and the Chipmunk
He is a shadow man
As Shan-Yu In Rika (Mulan)
As Laufey in Pikachu (Thor)
He is a Frost Giant
As Frollo in The Vicking of Notre Dame
He is Evil
As the Horned King In Ash and the Black Cauldron and The Black Cauldron (1701Movies Human Style)
As The Evil Emperor Zurg in Hiccup of Star Command: The Adventure Begins
As Dr In Dinosaur King (Ooglyeye Style)
As Professor Gerald In Ash X
As Makunga The Lion In Madagascar: Escape 2 Africa (Chris1701 Style)
He is A Evil Lion
As Another Main Villian In Toriladdin 3 Tori and the King of Thieves
He is Murderer and fomer Partner of Cassim
As Doom Who Framed Ash Ketchum
He is Evil Judge
He is a Si
As Sir Ruber In Chris1702 Human Style
As Malachit In Sailor Kim
As Ursula/Vanessa in The Little Mer-Ash
As Uncle V Dursley In Ash Ketchum and The Sorcerer's Stone
He is ???'s Cruel and Fat Uncle Husband of and father of D Dursley
As Evil Darien In Sailor Serena (1701Movies Style)
- In Pokemon (TheBluesRockz Animal Style) he is played by Fat Cat.
- In Pokemon (DinosaurKingRockz Animal Style) he is played by Him.
- In Pokemon (CartoonNetworkandSony Animal Style) he is played by Rat Capone
- In Pokemon (1701Movies Human Style) he is played by Dr. Drakken.
- In Pokemon (SuperWhyMovies), and Pokemon (4000Movies Style) he played by Jafar.
- In Pokemon (SuperWhyMovies Style) and Pokemon (Chris1701 Style) he played by Ratigan.
- In Pokemon Origins (TheBluesRockz Animal Style) he is played by Cat R. Waul (Bad) and Tiger (Good).
- In Pokemon (Luke18 and WilliamLaster Styles) he played by Stan Beals
- In Pokemon (SuperWhyMovie's Animal Style) he played by Scar
- In Pokemon (SuperWhyMovies' Human Style) he played by Hades
- In Pokemon (398Movies Human Style) he is played by Percival C. McLeach.
- In Pokemon Origins (Ooglyeye Style) he is played by Frollo (Bad) and Phoebus (Good).
- In Pokemon (Chris1704 Animal Style) he is played by Jenner
- In Pokemon (200Movies Human Style) He is Played By Himself
- In Pokemon (Chris1986 Style) He is Played By Klaus Vorstein
- In Pokemon (Chris1812 Human Style) He is Played By Professor N
- In Pokemon (Chris1703 Style) He is Played By Pete
- In Pokemon (Chris2015 Animal Style) He is Played By Steel
- In Pokemon (SuperWhyMovie's Human), Pokemon The First Movie (SuperWhyMovie's Human) he is played by The Evil Emperor Zurg
- In Pokemon (170Movies Style) he is played by ???.