Sonic Adventure 3: Return of Pure Energy

Plot Summary
Dr. Eggman and his pure evil army are causing all sorts of trouble in Mobius. where Sonic, Tails, Knuckles and the other Freedom Fighters live. it also tells the true legend of how he wanted to be a real super powerful scientist like his late grandfather, Gerald Robotnik was.

Team Hero Story Sequence
The entire story sequence begins with flashback memories of Young Ivo Robotnik, before becoming Dr. Eggman in the future, watching his grandfather, Gerald Robotnik, working on one of his inventions: an atomic bomb device.

While lounging around outside, Sonic gets an emergency call from Tails. telling him that Dr. Eggman and his pure evil army are up to no good again. this time, he's planning on taking control of Mobius and turning it into Egg-Topolis. it's up to the Freedom Fighters to put a stop to his pure evil plans at once.

Team Hero

 * Ben Schwartz as Sonic the Hedgehog/Super-Sonic (voices)
 * Cassandra Lee Morris as Miles "Tails" Prower the Two-Tailed Fox (voice, ever since Morgana's voice in Persona Five)
 * Troy Baker as Knuckles the Echidna/Super Knuckles (voice, ever since Kanji Tasumi's voice in Persona Four)

Team Dark

 * Crispin Freeman as Shadow the Hedgehog/Super Shadow (voices, ever since Red Arrow's voice in the Young Justice franchise)
 * Erica Lindbeck as Rouge the Bat (voice, ever since Black Cat's voice in Spider-Man Playstation Four)
 * Corey Burton as E-123 Omega (robotic voice)
 * Dave Wittenberg as E-102 Gamma (robotic voice)

Team Rose

 * Erika Harlacher as Amy Rose (voice, ever since Ann Takamaki's voice in Persona Five)
 * Aimee Smith as Cream the Rabbit (voice)
 * Jeff Bergman as Big the Cat (voice, ever since Barney Rubble's voice in the Fruity and Cocoa Pebbles commercials)
 * Mae Whitman as Cosmo the Seedrian (voice)

Team Chaotix

 * Liam O'Brien as Espio the Chameleon (voice)
 * Debi Derryberry as Charmy Bee (voice, ever since Jimmy Neutron's voice on The Adventures of Jimmy Neutron: Boy Genius)
 * John DiMaggio as Vector the Crocodile (voice)

Team Future

 * Jason Marsden as Silver the Hedgehog/Super Silver (voices)
 * Olivia D'abo as Blaze the Cat/Burning Blaze (voices)
 * Nolan North as Alfredo the Bat (voice)

Team Babylon

 * Dee Bradley Baker as Jet the Hawk (voice)
 * Candi Milo as Wave the Swallow (voice)
 * Fred Tatasciore as Storm the Albatross (voice)

Team Coolness

 * Scarlett Estevez as Grinder the Lizard (voice)
 * Jessica DiCicco as Twinkle the Raccoon (voice)
 * Donald Glover as Flashy the Echidna (voice)
 * Liz Georges as Glimmer the Iguana (voice)

Team Sunshine

 * Emily Hahn as Clover the Hedgehog/Mega Clover (voices)
 * Alexander Gould as Lightning the Hedgehog/Super Lightning (voices)
 * Tara Lynne Barr as Athena the Jaguar (voice)

Team Action

 * Travis Willingham as Soar the Eagle (voice)
 * Miranda Cosgrove as Nova the Jackal (voice)
 * Steve Blum as Dimples the Parrot (voice)

Team Sporty

 * Jason Griffith as Harambe the Fearless (voice) (He's named after the late gorilla Harambe in tribute and memoriam)
 * Julie Nathanson as Diamond the Rabbit (voice)
 * Hayden Rolence as Clatcher the Pig (voice)

Team Freedom

 * Ashley Johnson as Sally Acorn (voice, ever since Gwen Tennyson's voice on Ben Ten: Alien Force)
 * Rob Paulsen as Rotor the Walrus (voice, using his Gilbert Gottfried like voice)
 * Nancy Cartwright as Bunnie Rabbot (voice, using a country western accent)
 * Jason Liebrecht as Mighty the Armadillo (voice)
 * Eric Bauza as Ray the Flying Squirrel (voice)

Team Sentinal

 * Lacey Chabert as Pepper the Falcon (voice)
 * Danny Cooksey as Forrest the Skunk (voice)
 * Kari Wahlgren as Tangle the Lemur (voice)

Team Wonder

 * Scott Menville as Antoine D'Coolette (voice, using a French accent)
 * Eileen Stevens as Whisper the Wolf (voice)
 * Jon St. Jon as Ajax the Hyena (voice)
 * Stephanie Young as Maria the Hedgehog (voice) (She's a re-incarnation of the late Maria Robotnik)

Team Twilight

 * Lexi Sexton as Pansy the Iguana (voice)
 * Bryce Papenbrook as Eldon the Jaguar (voce)
 * Kate Higgins as Trixie the Wombat (voice)

Team Thrilling

 * Robbie Daymond as Manic the Hedgehog (voice)
 * Laura Post as Sonia the Hedgehog (voice)
 * Greg Cipes as Romerus the Porpoise (voice)

Super Villains

 * Mike Pollock as Dr. Eggman (voice)
 * Pamela Adlon as Tails Doll (voice)
 * David Vincent as Scourge the Hedgehog (voice)
 * Gaby Hoffmann as Metal Rouge (voice)
 * Kirk Thornton as Orbot (voice)
 * Michelle Ruff as Metal Amy (voice)
 * Wally Wingert as Cubot (voice)
 * Tara Charendoff as Metal Charmy (voice)
 * Aaron LaPlante as Metal Shadow (voice)
 * Karen Strassman as Metal Blaze (voice)
 * Kyle Herbert as Metal Big (voice)
 * Wendee Lee as Metal Cream (voice)
 * Josh Keaton as Metal Sonic (voice)
 * Lisa Ortiz as Crimson the Wolf (voice)
 * Dan Green as Bark the Polar Bear (voice)
 * Jim Parsons as Bean the Dynamite (voice)
 * Seth Green as Fang the Sniper (voice)
 * Patrick Seitz as Mephiles the Dark (voice)
 * Dave Mitchell as Infinite the Jackal (voice)

Allies

 * Cree Summer Francks as Nicole the Holo-Lynx (voice)
 * Sean Schemmel as President Sherman the Hedgehog (voice)
 * Tress MacNeille as Secretary Jane the Cat (voice)

Team Hero Story Side Stages

 * Green Hill Zone (3D Animated Version) (Sonic)
 * Emoji Zone (Tails)
 * Circus Quarters Zone (Knuckles)
 * Twinkle Wing Zone (Amy)
 * Cosmic Angel Zone (Cream)
 * Spring Resort Zone (Flashy)
 * Radical Carnival Zone (Grinder)