FETCH! with Ruff Ruffman (Universal Crossover)

Based on the 2006-2010 PBS Kids Go! Original, here is a crossover with all five seasons 100 episodes and three or less Thomas Stories.

Team Universal Kids

 * 1) Mr. Conductor 1 (Ringo Starr)
 * 2) Mr. Conductor 2 (Alec Baldwin)
 * 3) Mr. Conductor 3 (Michael Brandon)
 * 4) Chris and Martin Kratt (Themselves)
 * 5) Barney (Dean Wendt)
 * 6) Emma Wiggle (Emma Watkins)
 * 7) Waldo and Wenda (Joshua Rush and Haley Tju)
 * 8) Gillian and Angeline Espina (Themselves)
 * 9) Norman Picklestripes (Dwayne Hill)

From FETCH! with Ruff Ruffman

 * 1) Ruff Ruffman (Jim Conroy)

Team Universal Toons

 * 1) Ash Ketchum and Mary, Pikachu and Fluffy (Sarah Natochenny and Suzy Myers, Ikue Ohtani and Emily Jenness)
 * 2) Rikochet and El Rey (Carlos Alazraqui and Michael Donovan)
 * 3) Al Smith (Tom Kenny)
 * 4) Sandra Larson (Lisa Ortiz)
 * 5) SpongeBob SquarePants and Patrick Star (Tom Kenny and Bill Fagerbakke)
 * 6) Tommy, Dil and Angelica Pickles (Elizabeth Daily, Tara Strong and Cheryl Chase)
 * 7) Danielle, Mona and Wendell LaMarche (Tara Strong, Lara Jill Miller and Danny Cooksey)
 * 8) CatDog (Jim Cummings and Tom Kenny)
 * 9) Winnie the Pooh (Jim Cummings)
 * 10) Todd and Riley Daring (Nancy Cartwright and Grey Griffin)
 * 11) Kuzco (J.P. Manoux)
 * 12) Star Butterfly (Eden Sher)
 * 13) Turbo and Chet (Reid Scott and Eric Bauza)
 * 14) Eep Crood (Stephanie Lemelin)
 * 15) Tip and Oh (Rachel Crow and Mark Whitten)
 * 16) Audrey and Zoe Smith (Stephanie Lemelin and Cree Summer)
 * 17) Scooby-Doo and Shaggy Rogers (Frank Welker and Matthew Lillard)
 * 18) Zara Hanson (Maggie Blue O'Hara)
 * 19) Timmy Turner, Cosmo and Wanda (Tara Strong, Daran Norris and Susanne Blakeslee)
 * 20) Dudley Puppy (Jerry Trainor)
 * 21) Huey, Dewey and Louie (Danny Pudi, Ben Schwartz, Bobby Moynihan)
 * 22) Timon and Pumbaa (Quinton Flynn and Ernie Sabella)
 * 23) Cybil and Judy Herrison (Tara Strong and Grey Griffin)
 * 24) Amy Flowers (Tara Strong)
 * 25) Yami Yugi Moto (Dan Green)
 * 26) Virgil and Sharon Hawkins (Phil LaMarr and Michele Morgan)
 * 27) Gordon Hooper (Eric Stuart)
 * 28) Felicia and Tawny McCoy (Lisa Ortiz and Tara Jayne)
 * 29) Jackie, Jade and Uncle Chan (James Sie, Stacie Chan and Sab Shimono)
 * 30) Daemona (Jocelyn Loewen)
 * 31) Arnold Shortman and Gerald Johanssen (Mason Vale Cotton and Benjamin Flores Jr.)
 * 32) Daggett Doofus and Norbert Foster (Richard Steven Horvitz and Nick Bakay)
 * 33) Phineas Flynn, Ferb Fletcher and Perry the Platypus (Vincent Martella, Thomas Sangster and Dee Bradley Baker)
 * 34) Anne Boonchuy and Sprig Plantar (Brenda Song and Justin Felbinger)
 * 35) Kick, Brad and Brianna Buttowski (Charlie Schlatter, Danny Cooksey and Grey Griffin)
 * 36) Randy Cunningham (Ben Schwartz)
 * 37) Hiccup Horrendous Haddock III (Jay Baruchel)
 * 38) Puss in Boots (Eric Bauza)
 * 39) Takashi Shirogane (Josh Keaton)
 * 40) James "Jim" Lake Jr. (Emile Hirsch)
 * 41) Yoshi (Andrew Sabiston)
 * 42) Wario and Waluigi (Tom Kenny and Matt Chapman)
 * 43) Jonny Quest and Bandit (Jason Marsden and Frank Welker)
 * 44) Donkey and Diddy Kong (Richard Yearwood and Andrew Sabiston)
 * 45) Heathcliff and Riff-Raff (Frank Welker and Tom Kenny)
 * 46) Sophia Winterford (Tara Strong)
 * 47) Underdog (Tom Kenny)
 * 48) Lola Chilton (Kate Micucci)

Villains

 * 1) Jessie, James, Meowth and Wobbuffet (Michele Knotz, Jimmy Zoppi and Erica Schroeder)
 * 2) Ken and Mary (Marc Thompson and Caroline Hellman)
 * 3) Cliff, Lube and Shriek (Tom Kenny, Carlos Alazraqui and Maria Bamford)
 * Ted, Pinky and Vacuum Head (Jim Cummings and Tom Kenny)

Season 1 (2006)

 * 1) 3-2-1 Blast Off! - Thomas Stories: Thomas Gets Tricked / Come Out, Henry! / Thomas and Bertie's Great Race (Ringo Starr)
 * 2) Good Dancing and Bad Teeth
 * 3) How To Get Out Your Inner Hip Hop
 * 4) Cats? I Thought You Said Kites!
 * 5) Ye Olde Colonial Episode
 * 6) Saturday Night With A Slight Fever
 * 7) To Bee or Not to Bee
 * 8) B.L.T. For Breakfast
 * 9) The Mystery of the Missing Thing in the Haunted Castle
 * 10) This Old Lemonade Stand
 * 11) It's Raining Cats and Dogs
 * 12) That Doesn't Float My Boat
 * 13) Send In The Clowns
 * 14) Grandma Ruffman's Recipe for Success
 * 15) Tryin' Chef
 * 16) Don't Put the Kart Before the Sea Lion
 * 17) Relaxin' with Ruff
 * 18) Scat Cat, Scat
 * 19) Ruff Ruffman Spaces Out
 * 20) The Dogcathalon Finale

Season 2 (2007)

 * 1) Ruff Ruffman Breaks the Mold
 * 2) Ruff's Case of Blues in the Brain
 * 3) You Lucky Dog
 * 4) Ruff's Big Break
 * 5) The Mystery of DogTopia and Catlantis
 * 6) Reducing The Calories and Cats In Your Life
 * 7) I'm OK, You're Okra
 * 8) The Small Fork Is For Dessert (Unless You're A Dolphin)
 * 9) Roughing It With Ruff
 * 10) Ruff's Bowling Is Going Downhill
 * 11) Mush If By Land, Mush Mush If By Sea, Part 1
 * 12) Mush If By Land, Mush Mush If By Sea, Part 2
 * 13) Yippie Tie Yie Yay, Get a Long Little Doggies
 * 14) Tape Loops and Loop-the-Loops
 * 15) A Lobster Bake? Oh Buoy!
 * 16) How to Get Dogs and Doggerel in Better Shape
 * 17) Scruff Ruffman At Large!
 * 18) Take Me Out to the Fashion Show
 * 19) CSI Ruff
 * 20) The Grand Prizeless Grand Finale

Season 3 (2008)

 * 1) The Debut of Smell-O-Vision
 * 2) When Home is a House of Cards
 * 3) Just Call Him Spot
 * 4) Mr. Ruffman Goes to Washington
 * 5) Mission Improbable
 * 6) How Not to Impress A Poodle's Mother
 * 7) There's Food Safety and Then There's Food Safety
 * 8) Do-Se-Dos and Do-Se-Don'ts
 * 9) The DogVinci Code
 * 10) What's Bugging Ruff?
 * 11) Will They Like The Show? It's A Shoe-In!
 * 12) Socket to Me
 * 13) Dog of the Rings
 * 14) Arrgh - All Me Eggs Are Cracked!
 * 15) Feeling Sheepish, Ruff?
 * 16) I'll Ruff and I'll Ruff and I'll Blow Your House Down
 * 17) The People Vs. Grandma Ruffman
 * 18) Just Toying with Ruff
 * 19) The Ol' Switcheroo
 * 20) The Season 3 Finale: Ruff and Scruff: The Untold Story

Season 4 (2009)

 * 1) Season Four Is Canceled
 * 2) Don't Like Fencing? Try Fencing!
 * 3) The Ruffmeal Needs More Roughage
 * 4) Ruff Pigs Out and Has a Whale of a Time
 * 5) Ruff's Just Fueling Around
 * 6) Finding Eight-Legged Tights Isn't Easy
 * 7) Ruff Rocks the Environmentally Sustainable House!
 * 8) Doggie Duties
 * 9) How Not to Impress the Press
 * 10) How to Break the Ice and Also Waddle on It
 * 11) Blossom Bawls While Ruff Has a Ball with Balls
 * 12) Ruff Bounces Back
 * 13) Is It a Bird? Is It a Plane? It's Ruffmanman!
 * 14) Shrimp a La Carte
 * 15) Ruff Needs His Herring Checked
 * 16) Laser/Candid Camera (LePurr Strikes)
 * 17) Ruff's Yard Sale Makes a Racket
 * 18) Gearing Up for Getting Ruff's Goat
 * 19) How to Really Train Your Dog
 * 20) Fetch Finale IV: The Prophecy Fulfilled!

Season 5 (2010)

 * 1) Ruff Fetches The Fetchers
 * 2) Game Show Isle
 * 3) You Can't Teach An Orange Dog New Tricks
 * 4) The Ol' Shell Game
 * 5) Ruffman Manor Is Haunted!
 * 6) It's Ruff In the Ring
 * 7) A Whole Flock of Cheese
 * 8) How Much Frosting Can You Bear?
 * 9) The Legend Of Ruffman's Gold
 * 10) Who Wants to Trade For Some Old Tracks?
 * 11) Eureka Is Not a Brand of Dog Food
 * 12) That Sculpture Isn't Yours, It's Mime
 * 13) Look What the Dog Dug Up!
 * 14) Ruff Follows His Dream
 * 15) Birds Are Handy!
 * 16) Wolfing Down Some Barbecue
 * 17) Go Belugas Go!
 * 18) Snoop Dog
 * 19) Long Glen Silver and the Pursuit of the Golden Fetchie!
 * 20) The FETCH! Finale

Trivia

 * The 100-episode crossover without any ending segments.
 * For this crossover, the Classic and New Series episodes are told by Ringo Starr (for Seasons 1-2), Alec Baldwin (for Seasons 3-6) and Michael Brandon (for Seasons 7-10)
 * Seasons 1-3 has three Thomas Stories from the Classic Series, while Seasons 4 and 5 have two Thomas Stories from Seasons 8-10.
 * This will be Ringo Starr's first time as Mr. Conductor 1 (due to George Carlin passing away).
 * The Season 7 episodes with Mr. Conductor 3 have the New Series music by Robert Hartshorne and Ed Welch.