Alvin and Friends in The Dooley and Pals Show

Based on the 2000-2003 series, here is a UK Alvin and Friends crossover.

The Guards of Shining Time Station UK

 * 1) Mr. Guard 1 (Ringo Starr)
 * 2) Mr. Guard 2 (Michael Angelis)

Chipmunks and Chipettes

 * 1) Alvin (Ross Bagdasarian Jr.)
 * 2) Brittany (Janice Karman)
 * 3) Theodore (Janice Karman)
 * 4) Eleanor (Vanessa Bagdasarian)
 * 5) Simon (Ross Bagdasarian Jr.)
 * 6) Jeanette (Janice Karman)

From Lalaloopsy

 * 1) Rosy Bumps N Bruises (Emma Duke)
 * 2) Spot Splatter Splash (Tate McRae)
 * 3) Jewel Sparkles (Selia Sangra)
 * 4) Storm E. Sky (Mariee Devereux)
 * 5) Crumbs Sugar Cookie (Jocelyne Loewen)
 * 6) Dot Starlight (Marÿke Hendrikse)

From CatDog and Piny: Pinypon Institute of New York

 * 1) CatDog (Jim Cummings and Tom Kenny)
 * 2) Michelle Fairchild (Erin Fitzgerald)
 * 3) Tasha Robinson (Cassandra Lee Morris)
 * 4) Lilith Henderson (Erica Lindbeck)

Mysticons and Legend Quest United

 * 1) Arkayna Goodfey (Alyson Court)
 * 2)  Zarya Moonwolf (Nicki Burke)
 * 3)  Emerald Goldenbraid (Evany Rosen)
 * 4)  Piper Willowbrook (Ana Sani)
 * 5)  Choko (Frank Welker)
 * 6) Leo San Juan (Johnny Rose)
 * 7) Alebrije (Paul Tei)
 * 8) Don Andres (Oscar Cheda)
 * 9) Marcella (Cydney J. Fam)

Glitter Heroines

 * 1) Emily Anderson, Candy and Pop (Laura Bailey, Debi Derryberry and Todd Haberkorn)
 * 2) Kelsey Ace (Colleen O'Shaughnessey)
 * 3) Lily Parker (Alex Cazares)
 * 4) April Swanson (Danielle Judovits)
 * 5) Chloe Rose (Kate Higgins)
 * 6) Maya Aida and Kippie (Debi Derryberry and Tara Sands)
 * 7) Rachel and Rory (Cassandra Lee Morris and Erica Mendez)
 * 8) Clara Yotsuba and Lance (Melissa Fahn and Bryce Papenbrook)
 * 9) Mackenzie Mack and Davi (Stephanie Sheh and Erica Mendez)
 * 10) Natalie Miller and Baby Dina (Erica Lindbeck and Yuka Imai)

From The Dooley and Pals Show

 * 1) Dooley (David Maida)
 * 2) M.A.R.T.I.E. (Michael Stevens)

Heroes of Universal Kids

 * 1) Barney (Dean Wendt)
 * 2) Littlefoot the Dinosaur (Cody Arens)
 * 3) Christopher and Martin Kratt (Themselves)
 * 4) Gillian and Angeline Espina (Themselves)
 * 5) Clover Ewing, Alexandra Vazquez and Samantha Simpson (Andrea Baker, Katie Griffin and Jennifer Hale)
 * 6) Kelly Quinn, Darby O'Brien and Hannah Parker-Kent (Olivia Sanabia, Abby Donnelly and Aubrey Miller)
 * 7) Polly Pocket, Shani and Lila Draper (Emily Tennant, Kazumi Evans and Shannon Chan-Kent)
 * 8) Emma, Lachy, Simon and Anthony Wiggle (Emma Watkins, Lachlan Gillespie, Simon Pryce and Anthony Field)
 * 9) Waldo and Wenda (Joshua Rush and Haley Tju)
 * 10) Norman Picklestripes (Dwayne Hill)
 * 11) Puss in Boots and Dulcinea (Eric Bauza and Jayma Mays)
 * 12) Hiccup Horrendous Haddock, Dak and Leyla (Jay Baruchel, Nicolas Cantu and Brennley Brown)

Heroes of 4Kids/Warner Bros./Saban/DreamWorks

 * 1) Ash Ketchum, Mary, Pikachu and Togepi (Sarah Natochenny, Kerry Williams, Ikue Ohtani and Satomi Korogi)
 * 2) Rikochet and El Rey (Carlos Alazraqui and Michael Donovan)
 * 3) Al Smith (Tom Kenny)
 * 4) Sandra Larson and Babbit (Lisa Ortiz and Jimmy Zoppi)
 * 5) Zoey Hanson and Mini Mew (Amanda Brown and Tom Wayland)
 * 6) Scooby-Doo and Shaggy Rogers (Frank Welker and Matthew Lillard)
 * 7) Link (Eric Stuart)
 * 8) Ingrid Harper (Lisa Ortiz)
 * 9) Tai Kamiya, Kari Kamiya, Agumon and Gatomon (Joshua Seth, Lara Jill Miller, Tom Fahn and Mary Elizabeth McGlynn)
 * 10) Flint Hammerhead (R. Martin Klein)
 * 11) Mushra (Tom Gibis)
 * 12) Mondo Ooya (Derek Stephen Prince)
 * 13) Turbo and Chet (Reid Scott and Eric Bauza)
 * 14) Eep Crood (Stephanie Lemelin)
 * 15) Adora (Aimee Carrero)
 * 16) Audrey and Zoe (Stephanie Lemelin and Cree Summer)
 * 17) Yami Yugi Moto (Dan Green)
 * 18) Virgil and Sharon Hawkins (Phil LaMarr and Michele Morgan)
 * 19) Gordon and Yesenia Rae Hooper (Eric Stuart and Tara Jayne)
 * 20) Felicia and Tawny McCoy (Lisa Ortiz and Tara Jayne)
 * 21) Fox McCloud and Tricky (Joshua Seth and R. Martin Klein)
 * 22) Marina and Brenda Liteyears (Wendee Lee and Anna Garduno)
 * 23) Kick the Cyber Cat (Rick Jones)
 * 24) Kelly Westwood (Tifanie Christun)
 * 25) Sonic the Hedgehog and Christopher Thorndyke (Jason Griffith and Suzanne Goldish)
 * Omi, Kimiko Tohomiko, Raimundo Pedrosa and Clay Bailey (Tara Strong, Jennifer Hale, Eric Bauza and David Kaye)
 * 1) Jason Lee Scott, Tommy Oliver, Zachary Taylor, Billy Cranston, Trini Kwan and Kimberly Ann Hart (Austin St. John, Jason David Frank, Walter Emanuel Jones, David Yost, Thuy Trang and Amy Jo Johnson)
 * 2) Leonardo, Raphael, Donatello and Michelangelo (Michael Sinterniklaas, Frank Frankson, Sam Regal and Wayne Grayson)
 * 3) Johnny Test and Dukey (James Arnold Taylor and Louis Chirillo)
 * 4) Tyler Bowman, Kevin Reynolds, Theodore Roachmont and Jennifer Shope (Matt Hill, Richard Ian Cox, Lee Tockar and Tabitha St. Germain)

Bad Girls of Toon Universal

 * 1) Meilin Rae (Nicole Oliver)
 * 2) Malinda Doe (Jocelyne Loewen)
 * 3) Mayuko Kiyokawa (Rachael Lillis)
 * 4) Jasmine, Tapioca and Litchee (Leah Applebaum and Veronica Taylor)
 * 5) Frufru Tattoo Machofrou (Grey Griffin)
 * 6) The Becky Trio (Lisa Ortiz, Tara Jayne and Veronica Taylor)
 * 7) Terri Burton (Roxanne Beck)
 * 8) Princess Kenny Marigold, Monica MacDonald and Nora Richards (Roxanne Beck, Tara Jayne and Megan Hollingshead)
 * 9) Anne Granger (Carrie Keranen)
 * 10) Vivian Goodwin (Anna Garduno)
 * 11) Jordin Hanson (Colleen O'Shaughnessey)
 * 12) Abigail Thompson (Laura Summer)
 * 13) Josie Caldwell (Laura Summer)
 * 14) Christine and Brianna Flowers (Laura Summer and Anna Garduno)
 * 15) Reese Wilson (Laura Summer)
 * 16) Catra (A.J. Michalka)
 * 17) Mandy, Mindy, Caitlin and Dominique (Jennifer Hale, Katie Griffin and Andrea Baker)
 * 18) Gwen Grande (Rhona Rees)
 * 19) Penelope Lang (Catherine Disher)
 * 20) Odlulu (Eva Carlton)
 * 21) Julia Cooper, Rita Finucci and Dory Skornik (Cristina Vee, Kira Buckland and Laura Post)
 * 22) Regina and Nellie Knotty (Cherami Leigh and Laura Post)
 * 23) Theodora Villavicencio (Annemarie Blanco)

Villains

 * 1) Jessie, James, Meowth and Wobbuffet (Michele Knotz, Jimmy Zoppi and Erica Schroeder)
 * 2) Ken and Mary (Marc Thompson and Caroline Hellman)
 * 3) Ludwig Von Monsterstein Eccentro, Batch, Gluko and Impy (Joe Ochman, Wendee Lee, Dina Sherman and R. Martin Klein)
 * 4) Wolf, Leon, Pigma, Andrew and Panther (Richard Epcar, David Lodge, Lex Lang, Dave Mallow and Richard Cansino)
 * 5) Dren (Andrew Rannells)
 * 6) Petra Fina Dagmar, Mite and Fishman (Barbara Goodson, David Lodge and Lex Lang)
 * 7) Prima Donna Hodges, Carlton Cold Jones and Heavy Traffic (Kathleen Barr and Scott McNeil)
 * 8) Ganondorf (Ted Lewis)
 * 9) Cassidy and Butch (Emlyn Morinelli and Jimmy Zoppi)
 * 10) Giovanni and Dr. Namba (Craig Blair and Jimmy Zoppi)
 * 11) Cliff, Shriek and Lube (Tom Kenny, Maria Bamford and Carlos Alazraqui)
 * 12) Ulric, Brooha, Brute, Rascal, Ira, Marmo and Bel (Keith Silverstein, Mary Elizabeth McGlynn, Benjamin Diskin, Carrie Keranen and Ray Chase)
 * 13) Mallory, Kasha, Eartha and Willa (???, ???, ??? and ???)

Sandra's Cheer Squad

 * 1) Mira Sander (Lisa Ortiz)
 * 2) Lisa Brandon (Lisa Yamanaka)
 * 3) Stephanie Carlson (Maggie Blue O'Hara)
 * 4) Riley Edwin (Kelly Sheridan)
 * 5) Sweet Mint (Lisa Ortiz)
 * 6) Toni and Mika Morgan (Lisa Ortiz)
 * 7) Rita Harrington (Lisa Ortiz)
 * 8) Harriet Sanders (Veronica Taylor)

Episodes

 * 1) A New Friend - Thomas Stories: Thomas and Gordon and Edward and Gordon (told by Ringo Starr)
 * 2) A Safe Place - Thomas Stories: Emily's New Coaches and Percy Gets It Right (told by Michael Brandon)
 * 3) 3 Ring Circus - Thomas Stories: Henry and The Elephant and Make Someone Happy (told by Alec Baldwin)
 * 4) Be Good To Your Mother - Thomas Stories: Henry's Forest and James and The Trouble With Trees (told by Alec Baldwin)
 * 5) Home Sweet Home - Thomas Stories: Escape and Oliver Owns Up (told by Alec Baldwin)
 * 6) The Four Seasons - Thomas Stories: The Refreshment Lady's Stand and Bulgy Rides Again (told by Michael Brandon)
 * 7) Surprise! - Thomas Stories: Baa! and A Big Surprise For Percy (told by Alec Baldwin)
 * 8) Adventure - Thomas Stories: Rheneas and The Roller Coaster and The Runaway Elephant (told by Michael Brandon)
 * 9) Work and Play - Thomas Stories: Jack Jumps In and A Friend In Need (told by Alec Baldwin)
 * 10) See You Later - Thomas Stories: Saved From Scrap and A New Friend For Thomas (told by Ringo Starr)
 * 11) The Grumpies - Thomas Stories: Twin Trouble and Buffer Bother (told by Alec Baldwin)
 * 12) Family Circle - Thomas Stories: Special Attraction and Sir Topham Hatt's Holiday (told by Alec Baldwin)
 * 13) Rainy Day Blues - Thomas Stories: Percy's Promise and Toby and The Flood (told by Alec Baldwin)
 * 14) Feeling Icky - Thomas Stories: The Trouble With Mud and Gordon Takes A Tumble (told by Alec Baldwin)
 * 15) Playing School - Thomas Stories: One Good Turn and Bulls Eyes (told by Alec Baldwin)
 * 16) Mine, Mine, Mine! - Thomas Stories: The World's Strongest Engine and Middle Engine (told by Alec Baldwin)
 * 17) We Are All Special - Thomas Stories: A Big Day For Thomas and Trouble For Thomas (told by Ringo Starr)
 * 18) Dooley's Missing Treasure - Thomas Stories: Salty's Secret and Harvey To The Rescue (told by Alec Baldwin)
 * 19) The Green-Eyed Monster - Thomas Stories: Come Out, Henry! and Henry To The Rescue (told by Ringo Starr)
 * 20) Sweet Dooley Dreams - Thomas Stories: Thomas, Percy and The Mail Train and Mind That Bike (told by Alec Baldwin)
 * 21) Sticks and Stones - Thomas Stories: A Bad Day For Sir Handel and A Bad Day For Harold (told by Alec Baldwin)
 * 22) Promises, Promises - Thomas Stories: Better Late Than Never and Pop Goes The Diesel (told by Ringo Starr)
 * 23) Dooley Cries Wolf - Thomas Stories: Peter Sam and The Refreshment Lady and Percy's Chocolate Crunch (told by Alec Baldwin)
 * 24) A Snack To Remember - Thomas Stories: Fish and Something In The Air (told by Alec Baldwin)
 * 25) Pet Responsibility - Thomas Stories: James Goes Buzz, Buzz and Gordon and The Gremlin (told by Alec Baldwin)
 * 26) Taking Care of Business - Thomas Stories: Tenders and Turntables and Trouble In The Shed (told by Ringo Starr)
 * 27) The Great Pretender - Thomas Stories: Granpuff and Sleeping Beauty (told by Alec Baldwin)
 * 28) Dooley's New Shoes - Thomas Stories: Donald's Duck and Special Funnel (told by Alec Baldwin)
 * 29) The Five Senses - Thomas Stories: Bill, Ben and Fergus and Thomas and The Search For Fergus (told by Michael Brandon)
 * 30) Things That Go Bump In The Spaceship - Thomas Stories: Haunted Henry and Duncan Gets Spooked (told by Alec Baldwin)
 * 31) Dance To Your Own Beat - Thomas Stories: Happy Ever After and Thomas, Percy and The Squeak (told by Alec Baldwin)
 * 32) Great Outdoors - Thomas Stories: Percy's Ghostly Trick and Woolly Bear (told by Ringo Starr)
 * 33) The Dentist - Thomas Stories: Passengers and Polish and Gallant Old Engine (told by Alec Baldwin)
 * 34) We're All Different - Thomas Stories: Tender Engines and Toby Had A Little Lamb (told by Alec Baldwin)
 * 35) Monkey See, Monkey Do - Thomas Stories: The Runaway and Percy Takes The Plunge (Ringo Starr)
 * 36) When The Chip Is Down - Thomas Stories: Harold and The Flying Horse and Hooray For Thomas (told by Michael Brandon)
 * 37) I Love A Parade - Thomas Stories: Edward's Brass Band and Best Dressed Engine (told by Michael Brandon)
 * 38) A Safer Day - Thomas Stories: James and The Queen of Sodor and Gordon and Spencer (told by Michael Brandon)
 * 39) One Tin Robot Rides Away - Thomas Stories: Salty's Stormy Tale and Trusty Rusty (told by Michael Brandon)

Trivia

 * A full animated crossover.
 * Kimiko's outfit of the day: from Master Monk Guan.
 * Total of episodes: 39 (with all 78 UK Dubbed Thomas Stories in one)
 * Ending segment: Pikachu's Jukebox.
 * Opening theme: the Shining Time Station theme song.
 * Ending theme: a shortened version of Thomas' Anthem.