Giannis Stefopoulos (born July 15, 1965) is a Greek voice actor.
Animated Films
- The Adventures of Ichabod and Mr. Toad: Ratty.
- An American Tail and sequels: Papa Mousekewitz and Honest John.
- An American Tail: Fievel Goes West: Cat R. Waul and Wylie Burp.
- An American Tail: The Treasure of Manhattan Island: Dr. Dithering, Chief Wulisso and O'Bloat.
- An American Tail: The Mystery of the Night Monster: Slug, Haggis and Lone Woof.
- The Angry Birds Movie: Judge Peckinpah.
- Antz: Colonel Cutter.
- Asterix:
- Asterix and the Big Fight: Obelix and Fulliautomatix.
- Asterix and Cleopatra: Obelix.
- Asterix Conquers America: Obelix.
- Asterix the Gaul: Obelix and Phonus Balonus.
- Asterix in Britain: Obelix, General Motus and Fulliautomatix.
- Asterix Versus Caesar: Obelix and Dubious Status.
- The Twelve Tasks of Asterix: Obelix, Iris and Zeus.
- Bah, Humduck! A Looney Tunes Christmas: Elmer Fudd (DVD dub).
- Balto: Luk and Star.
- Balto II: Wolf Quest: Niju, Luk and the Hunter.
- Balto III: Wings of Change: Duke, Kirby and Mel.
- Barbie films:
- Barbie & The Diamond Castle: Jeremy.
- Barbie and the Magic of Pegasus: The King.
- Barbie as the Island Princess: Frazer, Guard and Calvin.
- Barbie in the Pink Shoes: Albrecht.
- Barbie of Swan Lake: Erasmus.
- Barbie in the 12 Dancing Princesses: Ambadassor and Guard #1.
- Barnyard: Otis.
- Bee Movie: Ken.
- Bolt: Lloyd.
- Cars and sequels: Filmore.
- Cars 3: Smokey.
- Cinderella and sequels: Jaq.
- Dumbo: Jim Crow.
- The Emperor's New Groove and Kronk's New Groove: Kronk.
- Epic (2013): Nim Galuu.
- Finding Nemo and Finding Dory: Crush.
- Flushed Away.
- Free Birds: Myles Standish.
- The Good Dinosaur: Poppa Henry and Coldfront.
- A Goofy Movie: Lester, Mordechai and Lester's Possum Park Emcee.
- Happy Feet Two: Seymour.
- Highlander: The Search for Vengeance: Marcus Octavius, Gregor, Sergeant and Freddy.
- Home on the Range: Alameda Slim.
- Hop: Hop's Father.
- Hotel Transylvania 3: Summer Vacation.
- How to Train Your Dragon: The Hidden World.
- Howl's Moving Castle: Calcifer.
- The Incredibles and Incredibles 2: The Underminer and Bernie Kropp.
- Incredibles 2: Reflux.
- Igor: Dr. Schadenfreude.
- The Jungle Book 2: Lucky the Vulture.
- Kung Fu Panda: Tai Lung.
- Lady and the Tramp II: Scamp's Adventure: Mooch.
- The Land Before Time: Cera's Dad (I to VIII and XIII), the Narrator (I, II and VIII) and Rooter.
- The Land Before Time II: The Great Valley Adventure: Strut.
- The Land Before Time VII: The Stone of Cold Fire: Pterano.
- The Land Before Time VIII: The Big Freeze: Stegosaurus Leader.
- The Land Before Time XI: Invasion of the Tinysauruses: Big Daddy.
- The Land Before Time XII: The Great Day of the Flyers: Mr. Clubtail.
- The Lion King 1 ½: Uncle Max.
- The Lorax (2012): Aloysius O'Hare.
- Minions.
- Monsters, Inc.: Fungus.
- Mortal Kombat: The Journey Begins: Rayden.
- My Little Pony: The Movie (2017).
- The Nut Job: Fingers.
- Over the Hedge: Lou.
- Penguins of Madagascar: Dave.
- Pokémon: The First Movie: Fergus.
- The Princess and the Frog: Lawrence.
- Ratatouille.
- Rock Dog: Linnux.
- Scooby-Doo! & Batman: The Brave and the Bold: Scooby-Doo, Detective Bullock, Detective Chimp, Aquaman and Clayface.
- Scooby-Doo and the Ghoul School: Scooby-Doo, Grunt and Mummy Daddy.
- Scooby-Doo! and the Reluctant Werewolf: Scooby-Doo, Mummy, Dr. Jekyll/Mr. Snyde, Wolfgang and Swamp Thing.
- Scooby Goes Hollywood: Scooby-Doo.
- The Secret Life of Pets: Ozon.
- Shrek: The Magic Mirror.
- Shrek 2, Shrek the Third and Shrek Forever After: Shrek (replacing Tasos Masmanidis).
- Sing: Meena's Grandfather.
- Spider-Man: Into the Spider-Verse: Spider-Noir.
- The Spongebob Squarepants Movie: Mr. Krabs.
- The SpongeBob Movie: Sponge Out of Water: Mr. Krabs.
- The Simpsons Movie: Krusty the Clown, Apu Nahasapeemapetilon, Comic Book Guy, Lenny Leonard and other roles.
- Strange Magic: Fairy King and Stuff.
- Tinker Bell: Secret of the Wings.
- Tinker Bell: The Pirate Fairy: Clank.
- Titan A.E..
- Tom and Jerry: The Movie.
- Toy Story 3.
- Treasure Planet: B.E.N.
- Turbo.
- Valiant: Bugsy.
- WALL•E: WALL-E.
- Winnie the Pooh films: Rabbit.
- Winx Club: The Secret of the Lost Kingdom.
- Wreck-It Ralph: Markowski.
- Zootopia: Chief Bogo.
Animated Series
- Adventures of the Gummi Bears: Duke Igthorn (Disney Junior dub).
- Babar: Babar and Cornelius (STAR/DVD dub).
- Camp Lazlo: Raj.
- Captain Flamingo: Milo's Dad, Rutger, Wendell, Otto, Avi and other roles.
- Care Bears (ALTER/DVD dub).
- Care Bears: Adventures in Care-a-Lot: Grizzle.
- Cars Toon.
- Dexter's Laboratory: Dexter's Dad (replacing Tasos Kostis) and other roles.
- Droopy, Master Detective: Droopy.
- Ducktales 2017: Scrooge McDuck.
- The Emperor's New School: Kronk.
- Fantastic Four: The Animated Series: The Thing (Jetix/DVD dub).
- Fantastic Four: World's Greatest Heroes: The Thing.
- The Garfield Show: Eddie Gourmand, Doc Boy and other roles.
- Harry and His Bucket Full of Dinosaurs: Taury and Sid.
- Heidi, Girl of the Alps.
- Hercules: The Animated Series: Panic.
- House of Mouse: Jiminy Cricket and Panic (Season 1, some episodes of Seasons 2 and 3).
- Huntik: Secrets & Seekers (ALTER dub).
- The Incredible Hulk (1996): The Leader.
- Jake And The Neverland Pirates: Skully and Bones.
- The Koala Brothers: Buster the Koala and George the Turtle.
- Life with Louie: Louie Anderson.
- Laff-A-Lympics: Mildew Wolf, Scooby-Doo and Great Fondoo (replacing Stavros Sioulis) (Boomerang/DVD dub).
- The Legend of Tarzan: Renard Dumont and other roles.
- Lilo & Stitch: The Series and Stitch!: Dr. Jacques von Hämsterviel.
- Looney Tunes: Sylvester Junior.
- Baby Looney Tunes: Baby Sylvester, Baby Taz and Floyd.
- The Looney Tunes Show: Foghorn Leghorn and Elmer Fudd.
- New Looney Tunes: Elmer Fudd.
- Taz-Mania: Bushwhacker Bob and Bull Gator (STAR dub).
- Marsupilami: Marsupilami, Jean-Pierre and other roles.
- Mary Kate and Ashley in Action!: Ivan Quintero.
- Mega Man (Ruby-Spears).
- Mr. Men and Little Miss: Narrator and other roles.
- My Friends Tigger & Pooh: Rabbit.
- The New Adventures of Ocean Girl: Prince Jobah and King Nemon.
- The New Adventures of Winnie the Pooh: Rabbit (both dubs).
- One Piece: Roronoa Zoro.
- The Powerpuff Girls: Narrator, Mojo Jojo and Fuzzy Lumpkins.
- Powerpuff Girls Z: Mojo Jojo and other roles.
- The Proud Family: Oscar Proud.
- Rekkit Rabbit: Rekkit.
- Sabrina: The Animated Series: Harvey and Uncle Quigley (DVD dub).
- Scooby-Doo:
- Be Cool, Scooby-Doo!: Scooby-Doo (both dubs).
- The New Scooby-Doo and Scrappy-Doo Show: Scooby-Doo (Boomerang/DVD dub).
- The New Scooby-Doo Movies: Scooby-Doo (Boomerang dub).
- The New Scooby-Doo Mysteries: Scooby-Doo (Boomerang/DVD dub).
- Scooby-Doo and Scrappy-Doo: Scooby-Doo (Boomerang dub).
- Scooby-Doo! Mystery Incorporated: Scooby-Doo (both dubs), Mr. E (STAR dub Season 1), Sheriff Stone (Boomerang dub) and other roles.
- Shaggy & Scooby-Doo Get A Clue!: Scooby-Doo and other roles (Boomerang dub).
- What's New, Scooby-Doo?: Scooby-Doo (Boomerang dub).
- The Smurfs: Papa Smurf and Vanity (STAR dub).
- Simsala Grimm: Narrator and other roles.
- Sitting Ducks: Aldo and Ed.
- Sonic X: Knuckles and Shadow.
- SpongeBob SquarePants: Mr. Krabs (Season 4-7).
- Stanley: Dennis.
- Star Wars Rebels: Constantine, Azmorigan and Jun Sato.
- Teamo Supremo: Governor Kevin.
- Teen Titans (2003): Cyborg, Trigon the Terrible, General Immortus, Herald, Mas, Monsieur Mallah, See-More and Negative Man.
- Tiny Toon Adventures: Foghorn Leghorn (Boomerang dub).
- Top Cat.
- Totally Spies!: Jerry and other roles.
- Trollhunters: Walter Strickler.
- Ultra Force.
- Vicky the Viking.
- Wacky Races (2017): Peter Perfect and Big Kahuna (STAR dub).
- Winx Club: Riven, Helia, Timmy, Mike and Knut (ALTER dub).
- W.I.T.C.H.: Howard Hale and Lord Cedric.
- The Woody Woodpecker Show.
- Yakkity Yak: Professor Crazyhair.
Live Action Series
- The Book of Pooh: Rabbit.
- Teletubbies: Dipsy and the Narrator.