Sonic Underground: The Reunion

As a Sonic X Crossover, here is Sonic's reunion with Sonia (Kerry Williams) and Manic (Wayne Grayson).

Plot

 * Our story takes place at a community center in Turabo Gardens, as Sonic makes a reunion with Sonia and Manic. Also among all eight songs are eight Thomas Stories from the fourth season, as told by Mr. Conductor 2.

The Conductors of Shining Time Station

 * 1) Mr. Conductor 1 (Ringo Starr)
 * 2) Mr. Conductor 2 (Alec Baldwin)
 * 3) Mr. Conductor 3 (Michael Brandon)

From The Simpsons

 * 1) Homer Simpson (Dan Castellaneta)
 * 2) Marge Simpson (Julie Kavner)
 * 3) Bart Simpson (Nancy Cartwright)
 * 4) Lisa Simpson (Yeardley Smith)
 * 5) Baby Maggie Simpson (Josie Foster)

From Inspector Gadget (using their 2015 voices)

 * 1) Inspector Gadget (Don Adams)
 * 2) Penny Gadget (Tara Strong)
 * 3) Brain the Dog (Scott McCord)
 * 4) Chief Quimby (Derek McGrath)
 * 5) Professor Von Slickstein (Scott McCord)
 * 6) Kayla (Katie Griffin)
 * 7) Dr. Claw (Martin Roach)
 * 8) MAD Cat (Frank Welker)
 * 9) Talon (Lyon Smith)
 * 10) Mama Claw (Martin Roach)
 * 11) MAD Henchmen (Various Voices)

Sonic Heroes Teams

 * 1) Sonic the Hedgehog, Miles Tails Prower and Knuckles the Echidna (Jason Griffith, Amy Palant and Dan Green)
 * 2) Shadow the Hedgehog, Rouge the Bat and E-123 Omega (Jason Griffith, Kathleen Delaney and Vic Mignogna)
 * 3) Amy Rose, Cream the Rabbit, Cheese the Chao, Big the Cat and Froggy the Frog (Lisa Ortiz, Rebecca Honig, Oliver Wyman and Amy Birnbaum)
 * 4) Espio the Chameleon, Charmy the Bee and Vector the Crocodile (David Wills, Amy Birnbaum and Dan Green)

Nickelodeon United

 * 1) SpongeBob SquarePants and Gary the Snail (Tom Kenny)
 * 2) Timmy Turner, Sparky, Cosmo, Wanda and Poof (Tara Strong, Daran Norris, Susanne Blakeslee and Matthew W. Taylor)
 * 3) Jimmy Neutron and Goddard (Debi Derryberry and Frank Welker)
 * 4) Danny and Jazz Fenton (David Kaufman and Colleen O'Shaughnessey)

Disney United

 * 1) Winnie the Pooh (Jim Cummings)
 * 2) Todd and Riley Daring (Nancy Cartwright and Grey Griffin)
 * 3) Kuzco (J.P. Manoux)
 * 4) Cybil and Judy Herrison (Tara Strong and Grey Griffin)

4Kids United

 * 1) Sandra Larson and Babbit (Lisa Ortiz and Jimmy Zoppi)
 * 2) Ash Ketchum and Pikachu (Sarah Natochenny and Ikue Ohtani)
 * 3) Gordon Hooper and Yesenia Rae (Ted Lewis and Tara Jayne)
 * 4) Felicia and Tawny McCoy (Lisa Ortiz and Tara Jayne)

Saban United

 * 1) Kassie Carlin and Iggy Pig (Julie Maddalena and Derek Stephen Prince)
 * 2) Tai Kamiya and Agumon (Joshua Seth and Tom Fahn)
 * 3) Fox McCloud and Tricky the Little Triceratops (Joshua Seth and R. Martin Klein)
 * 4) Kelly Westwood and Walkie The Cat (Tifanie Christun and R. Martin Klein)

Cartoon Network United

 * 1) Dexter (Candi Milo)
 * 2) Eddy (Tony Sampson)
 * 3) Courage the Cowardly Dog (Marty Grabstein)
 * 4) Numbuh 1 (Benjamin Diskin)

DreamWorks United

 * 1) Turbo the Snail (Reid Scott)
 * 2) Puss in Boots (Eric Bauza)
 * 3) James "Jim" Lake, Jr. (Emile Hirsch)
 * 4) Hiccup Horrendous Haddock III (Jay Baruchel)

Mean Girls United

 * 1) Meilin Rae (Nicole Oliver)
 * 2) Monica MacDonald (Tara Jayne)
 * 3) Heather Hogwarsh (Laura Summer)
 * 4) Jordin Hanson (Colleen O'Shaughnessey)

Villains United

 * 1) Jessie and Wobbuffet (Michele Knotz and Erica Schroeder)
 * 2) Batch (Wendee Lee)
 * 3) Clifford Feltbottom (Tom Kenny)
 * 4) Ted the Counterfeit Toy Doll (Jim Cummings)

People Who Keep An Eye on Mean Girls and Bad Guys

 * 1) Senora Zapata (
 * 2) Squidward Tentacles (
 * 3) Vice Principal Lancer (

Real Life Singers Portrayed by Kodocha and Aqua Age

 * 1) Floella Thompson as Kelly Clarkson (
 * 2) Aya MacDonald as Joy Williams (Amy Birnbaum)
 * 3) Roberta Parsley, Mary Taylor, Ramona Hill, Marley Hanson and Nellie Carlin as the Spice Girls (Leah Applebaum, Megan Hollingshead, Kerry Williams, Rachael Lillis and Amy Birnbaum)
 * 4) Christine Richards and Serena Hamilton as M2M (Kerry Williams and Tara Jayne)
 * 5) Hilary Brood as Miley Cyrus (
 * 6) Katherine Jordan as Selena Gomez (
 * 7) Maritza Lamar, Mildred Carson, Karen Bernstein and Minerva Raven as Play (Lisa Ortiz)
 * 8) Maya Burlington and Alexandra Hartman as Alyson and A.J. Michalka (Leah Applebaum and Mandy Bonhomme)

Sonic's Siblings

 * 1) Sonia (Kerry Williams)
 * 2) Manic (Wayne Grayson)

Thomas Stories

 * 1) Granpuff
 * 2) Sleeping Beauty
 * 3) Bulldog
 * 4) You Can't Win
 * 5) Rusty To The Rescue
 * 6) Thomas and Stepney
 * 7) Train Stops Play
 * 8) Bowled Out

Song

 * 1) Sonic Underground theme song (opening)

Trivia

 * A home video hosted by Tommy Pickles (from), Danielle LaMarche (from Danielle LaMarche: Time Bomb Girl), Otto Rocket (from) and Ginger Foutley (from).
 * Alec Baldwin audio for the Season 4 episodes: from ???, ???, ??? and ???.
 * Absent: Dr. Eggman.

Script

 * (Our story opens with the Sonic Underground theme song)
 * Russell Velazquez: