Mr. Conductor, Ruff Ruffman and The Electric Company

Loosely a three way crossover, here is this epic style.

The Conductors of Shining Time Station US

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

The FETCH! Host

 * 1) Ruff Ruffman (Jim Conroy)

From The Electric Company

 * 1) Hector and Jessica Ruiz (Josh Segarra and Priscilla Diaz)
 * 2) Lisa Heffenbacher (Jenni Barber)
 * 3) Keith Watson (Ricky Smith)
 * 4) Marcus Barnes (Coy Stewart)
 * 5) Francine Carruthers (???)
 * 6) Annie Scrambler (???)
 * 7) Gilda Flip (???)
 * 8) Manny Spamboni (Tara Perry)
 * 9) Danny Rebus (???)

Friends To Ruff Ruffman

 * 1) Buster Bunny (Charlie Adler)
 * 2) Babs Bunny (Tress MacNeille)
 * 3) Bugs Bunny (Jeff Bergman)
 * 4) Lola Bunny (Rachel Ramras)
 * 5) Ace Bunny (Charlie Schlatter)
 * 6) Lexi Bunny (Jessica DiCicco)

Pokemon Contestants

 * 1) Ash Ketchum and Pikachu (Sarah Natochenny and Ikue Ohtani)
 * 2) Mary and Togepi (Kerry Williams and Satomi Korogi)
 * 3) Gary Oak (Jimmy Zoppi)
 * 4) Brock (Bill Rogers)
 * 5) Misty (Michele Knotz)
 * 6) Tracey Sketchit (Craig Blair)

Warner Bros. Animation Contestants

 * 1) Rikochet and El Rey (Carlos Alazraqui and Michael Donovan)
 * 2) Kevin Whitney and Krypto (Alberto Ghisi and Samuel Vincent)
 * 3) Al Smith (Tom Kenny)
 * 4) Kimiko Tohomiko (Grey Griffin)
 * 5) Shaggy Rogers and Scooby-Doo (Matthew Lillard and Frank Welker)
 * 6) Osmosis Jones and Drixenol Koldriliff (Phil LaMarr and Jeff Bennett)

Cardcaptors Contestants

 * 1) Sakura Avalon (Carly McKillip)
 * 2) Meilin Rae (Nicole Oliver)
 * 3) Madison Taylor (Maggie Blue O'Hara)
 * 4) Rita (Stevie Bloch)
 * 5) Chelsea (Jocelyne Loewen)
 * 6) Nikki (Kelly Sheridan)

Nickelodeon Contestants

 * 1) SpongeBob SquarePants (Tom Kenny)
 * 2) Tommy Pickles (Elizabeth Daily)
 * 3) Lincoln Loud (Tex Hammond)
 * 4) Danielle LaMarche (Tara Strong)
 * 5) Timmy Turner (Tara Strong)
 * 6) Otto Rocket (Joseph Ashton)

Cartoon Network Contestants

 * 1) Dexter (Candi Milo)
 * 2) Eddy (Tony Sampson)
 * 3) Courage the Cowardly Dog (Marty Grabstein)
 * 4) Blossom (Amanda Leighton)
 * 5) Numbuh 1 (Benjamin Diskin)
 * 6) Ami Onuki (Janice Kawaye)

4Girls Contestants

 * 1) Sandra Larson (Lisa Ortiz)
 * 2) Floella Thompson (Roxanne Beck)
 * 3) Felicia McCoy (Lisa Ortiz)
 * 4) Aya MacDonald (Amy Birnbaum)
 * 5) Hilary Brood (Rachael Lillis)
 * 6) Katherine Jordan (Megan Hollingshead)

Disney Contestants

 * 1) Kuzco (J.P. Manoux)
 * 2) Todd Daring (Nancy Cartwright)
 * 3) Kick Buttowski (Charlie Schlatter)
 * 4) Star Butterfly (Eden Sher)
 * 5) Phineas Flynn (Vincent Martella)
 * 6) Randy Cunningham (Ben Schwartz)

Saban Contestants

 * 1) Tai Kamiya and Agumon (Joshua Seth and Tom Fahn)
 * 2) Flint Hammerhead (R. Martin Klein)
 * 3) Mushra (Tom Gibis)
 * 4) Mondo Ooya (Derek Stephen Prince)
 * 5) Fox McCloud (Joshua Seth)
 * 6) Kick the Cyber Cat (Rick Jones)

Yu-Gi-Oh! Contestants

 * 1) Yami Yugi Moto (Dan Green)
 * 2) Jaden Yuki (Matthew Charles)
 * 3) Yusei Fudo (Greg Abbey)
 * 4) Yuma Tsukumo (Eli Jay)
 * 5) Yuya Sakaki (Michael Liscio Jr.)
 * 6) Yusaku Fujiki (Jake Paque)

U.S.T. Contestants

 * 1) Gordon Hooper (Eric Stuart)
 * 2) Kerry Burghs (Lisa Ortiz)
 * 3) Kenny Marigold (Roxanne Beck)
 * 4) Nora Richards (Megan Hollingshead)
 * 5) Maron (Kayzie Rogers)
 * 6) Monica MacDonald (Tara Jayne)

Kirby and Sonic Contestants

 * 1) Kirby (Makiko Ohmoto)
 * 2) Meta Knight (Eric Stuart)
 * 3) King Dedede (Ted Lewis)
 * 4) Sonic the Hedgehog (Jason Griffith)
 * 5) Miles Tails Prower (Amy Palant)
 * 6) Knuckles the Echidna (Dan Green)

Shaman King Contestants

 * 1) Yoh Asakura (Sebastian Arcelus)
 * 2) Mortimer Manta (Oliver Wyman)
 * 3) Joco McDonnell (Matthew George)
 * 4) Rio (Sean Schemmel)
 * 5) Trey Racer (Michael Sinterniklaas)
 * 6) Len Tao (Andrew Rannells)

The Forgotten Kids' WB! Characters

 * 1) Shareena Wickett (Tara Strong)
 * 2) Molly O! (Chantal Strand)
 * 3) Scott Summers (Kirby Morrow)
 * 4) Daemona (Jocelyn Loewen)
 * 5) Johnny Test and Dukey (James Arnold Taylor and Louis Chirillo)
 * 6) Tyler Bowman (Matt Hill)

Mon Colle Girls Contestants

 * 1) Rockna Hiiragi (Brianne Siddall)
 * 2) Beginner (Philece Sampler)
 * 3) Batch (Wendee Lee)
 * 4) Gluko (Dina Sherman)
 * 5) Lailai (Melissa Fahn)
 * 6) Kahimi (Tifanie Christun)

Nurse Angel Contestants

 * 1) Danielle Sanders (Tifanie Christun)
 * 2) Abigail Thompson (Laura Summer)
 * 3) Karen MacDonald (Colleen O'Shaughnessey)
 * 4) Anna Lombard (Brianne Siddall)
 * 5) Princess Helena (Wendee Lee)
 * 6) Princess Mira (Philece Sampler)

Sony Pictures/Warner Bros. Contestants

 * 1) Agent Jay and Kay (Keith Diamond and Gregg Berger)
 * 2) Virgil and Sharon Hawkins (Phil LaMarr and Michele Morgan)
 * 3) Jackie, Jade and Uncle Chan (James Sie, Stacie Chan and Sab Shimono)
 * 4) Garnet and Juliet Starr (Grey Griffin and Jennifer Hale)
 * 5) Jonny Quest and Emily Harper (Jason Marsden and Grey Griffin)
 * 6) Chance Furlong and Jake Clawson (Charlie Adler and Tom Kenny)

4th Grade Baby Contestants

 * 1) Baby Mayra (
 * 2) Nelly Marcos (
 * 3) Iris Simpson (
 * 4) Tina Morton and Erica Thomas (
 * 5) Chigusa Burgh (
 * 6) Juliet Verne and Sari Long (Rachael Lillis and Leah Applebaum)

Mean and Villainous Contestants

 * 1) Mel Szyslak (Nika Futterman)
 * 2) Jessie and Wobbuffet (Michele Knotz and Erica Schroeder)
 * 3) Petra Fina Dagmar (Barbara Goodson)
 * 4) Heather Hogwarsh (Laura Summer)
 * 5) Clifford Feltbottom (Tom Kenny)
 * 6) Ted the Counterfeit Toy (Jim Cummings)

Episodes

 * 1) Skills - Thomas Stories: Thomas Gets Tricked and Edward Helps Out

Trivia

 * The crossover with Pikachu's Jukebox.
 * Ringo Starr and Alec Baldwin re-narrate all of Seasons 1-4 of Thomas.
 * Kimiko wore her Judging Omi outfit for this crossover.
 * Total of episodes: 52 (with 104 Thomas Stories in one)