Heavy Meddle (UK Mr. Conductor Crossover)

Heavy Meddle is the twelfth episode of Spy Kids: Mission Critical.

The British Mr. Conductors

 * 1) RS Mr. Conductor (Ringo Starr)
 * 2) MA Mr. Conductor (Michael Angelis)

The Students of Spy Academy

 * 1) Carmen Cortes (Ashley Bornancin)
 * 2) Juni Cortes (Carter Hastings)
 * 3) Glitch (Caitlyn Bairstow)
 * 4) Scorpion (Nesta Cooper)
 * 5) Ace (Nicholas Coombe)

Kids' WB!, FOX Kids and 4Kids TV Alumni

 * 1) Zoey Hanson, Corina Bucksworth, Bridget Verdant, Kikki Benjamin and Renee Roberts (Amanda Brown, Andi Whaley, Bella Hudson, Kether Donohue and Mollie Weaver)
 * 2) Bloom, Tecna, Flora, Stella, Musa and Layla (Liza Jacqueline, Rebecca Soler, Kerry Williams, Amy Birnbaum, Lisa Ortiz and Vasthy Mompoin)
 * 3) Ash Ketchum, Gary Oak, Brock, Misty and Tracey Sketchit (Sarah Natochenny, Jimmy Zoppi, Bill Rogers, Michele Knotz and Craig Blair)
 * 4) Sonic the Hedgehog, Miles Tails Prower, Knuckles the Echidna, Amy Rose and Sticks the Badger (Jason Griffith, Amy Palant, Dan Green, Lisa Ortiz and Nika Futterman)
 * 5) Raphael, Leonardo, Michelangelo, Donatello (Frank Frankson, Michael Sinterniklaas, Wayne Grayson and Sam Regal)
 * 6) Dorie Goodwin, Reanne Griffith and Mirabelle Haywood (Amy Palant, Rebecca Soler and Kether Donohue)
 * 7) Rikochet, The Flea and Buena Girl (Carlos Alazraqui, Candi Milo, Kimberly Brooks)
 * 8) Scooby-Doo, Shaggy Rogers, Fred Jones, Daphne Blake and Velma Dinkley (Frank Welker, Matthew Lillard, Grey Griffin and Kate Micucci)
 * 9) Tai Kamiya, Matt Ishida, Sora Takenouchi, Izzy Izumi, Mimi Tachikawa, Joe Kido, T.K. Takaishi, Kari Kamiya, Davis Motomiya, Ken Ichijouji, Yolei Inoue, Cody Hida (Joshua Seth, Michael Reisz, Colleen O'Shaughnessey, Mona Marshall, Philece Sampler, Michael Lindsay, Doug Erholtz, Lara Jill Miller, Brian Donovan, Derek Stephen Prince and Tifanie Christun)
 * 10) Flint Hammerhead, Sarah Goodman and Tony Goodman (R. Martin Klein, Brian Donovan and Tifanie Christun)
 * 11) Speedy Cerviche, Polly Esther and Guido Anchovy (Rick Jones, Sonja Ball and Terrence Schammel)
 * 12) Serena Tsukino, Amy Anderson, Raye Hino, Lita Kino and Mina Aino (Stephanie Sheh, Kate Higgins, Cristina Valenzuela, Laura Post and Cherami Leigh)
 * 13) Mushra, Sago, Kutal, Binka and Yakumo Tatsuro (Tom Gibis, Steven Blum, Bob Papenbrook, Philece Sampler and Peggy O'Neil)
 * 14) Sakura Avalon, Meilin Rae, Madison Taylor, Rita, Chelsea and Nikki (Carly McKillip, Nicole Oliver, Maggie Blue O'Hara, Stevie Bloch, Jocelyne Loewen and Kelly Sheridan)
 * 15) Emily Anderson, Kelsey Ace, Lily Parker, April Swanson and Chloe Rose (Laura Bailey, Colleen O'Shaughnessey, Alex Cazares, Danielle Judovits and Kate Higgins)
 * 16) Maya Aida, Rachel, Clara, Mackenzie Mack, Natalie, Regina and Nellie Knotty (Debi Derryberry, Cassandra Lee Morris, Melissa Fahn, Stephanie Sheh, Erica Lindbeck, Cherami Leigh and Laura Post)
 * 17) Omi, Kimiko Tohomiko, Raimundo Pedrosa and Clay Bailey (Tara Strong, Jennifer Hale, Eric Bauza and David Kaye)
 * 18) Johnny Test, Dukey and Susan and Mary Test (James Arnold Taylor, Louis Chirillo, Ashleigh Ball and Maryke Hendrikse)
 * 19) Mondo Ooya and Rockna Hiiragi (Derek Stephen Prince and Brianne Siddall)
 * 20) Kassie Carlen, Heather Hogwarsh, Prudence Plum and Penny Round (Julie Maddalena, Laura Summer, Caryn Rosenthal and Wendee Lee)
 * 21) Yugi Moto, Joey Wheeler, Tristan Taylor, Tea Gardner and Seto Kaiba (Dan Green, Wayne Grayson, Sam Regal, Amy Birnbaum and Eric Stuart)
 * 22) Virgil Hawkins and Richie Foley (Phil LaMarr and Jason Marsden)
 * 23) Jackie, Jade and Uncle Chan (James Sie, Stacie Chan and Sab Shimono)
 * 24) Ozzy Jones and Drix Koldriliff (Phil LaMarr and Jeff Bennett)
 * 25) McGee, Suzi, Squirt, Gretchen, Jordan Buttsquat, Sawyer, Armand and Rosebud (Scott McCord, Bryn McAuley, Darren Frost, Melissa Altro, Carter Hayden, Cliff Saunders, Adrian Truss and Jonathan Wilson)
 * 26) Pac-Man, Cylindria and Spiral (Erin Matthews, Andrea Libman and Sam Vincent)
 * 27) Fangbone and Bill Goodwin (Taylor Abrahamse and Colin Doyle)
 * 28) Tyler Bowman, Kevin Reynolds, Theodore Roachmont and Jennifer Shope (Matt Hill, Richard Ian Cox, Lee Tockar, Tabitha St. Germain)
 * 29) Al Smith, Amy Sommerstein, James Carmichael and Mel Szyslak (Tom Kenny, Dionne Quan, Rob Paulsen and Nika Futterman)
 * 30) Sandra Larson, Floella Thompson, Maya Burlington, Hilary Brood, Aya MacDonald, Alexandra Hartman, Katherine Jordan, Christine Richards and Serena Hamilton (Lisa Ortiz, Roxanne Beck, Leah Applebaum, Kayzie Rogers, Rachael Lillis, Mandy Bonhomme, Megan Hollingshead, Amy Birnbaum and Tara Jayne)
 * 31) Harriet Sanders, Kara Perkins and Alyson Oliver (Veronica Taylor, Lisa Ortiz and Kerry Williams)
 * 32) Felicia McCoy, Terri Burton, Roberta Parsley, Ramona Hill, Mary Taylor, Marley Hanson, Nellie Carlen, Maritza Lamar, Karen Bernstein, Mildred Carson and Minerva Raven (Lisa Ortiz, Roxanne Beck, Leah Applebaum, Megan Hollingshead, Tara Jayne, Rachael Lillis and Amy Birnbaum)
 * 33) Fox McCloud, Falco Lombardi, Krystal, Katt Monroe, Miyu, Slippy Toad, Peppy Hare and Fay (Joshua Seth, Derek Stephen Prince, Wendee Lee, Tifanie Christun, Colleen O'Shaughnessey, Rick Jones, Tom Gibis and Anna Garduno)
 * 34) Alicia Parker, Jamie Parker, Relena Parker, Shauna Blake, Erika Harper, Lindy McCoy and Sally Anderson (Julie Maddalena, Tifanie Christun, Anna Garduno, Laura Summer, Colleen O'Shaughnessey and Philece Sampler)
 * 35) Carla Manson, Ringo Burghs, Darryl Parsons, Yolanda Harrison, Marina Barton and Charlene Langley (Carly McKillip, Joanne Vannicola, Lainie Frasier, Susan Laney Dalton, Maggie Blue O'Hara and Chantal Strand)
 * 36) Kelly Westwood, Christine and Brianna Flowers, Maureen Holiday, Natalie Wellington and Amanda Larkin (Tifanie Christun, Laura Summer, Anna Garduno, Colleen O'Shaughnessey and Philece Sampler)
 * 37) Marilyn Shine, Malinda Doe, Susie Feeble, Emma Bore, Fanny Rogers and Tuesday Van Dour (Tara Strong, Jocelyn Loewen, Tress MacNeille, Cheryl Chase and Melissa Fahn)
 * 38) Felix the Cat (Charlie Adler)
 * 39) Donkey and Diddy Kong (Richard Yearwood and Andrew Sabiston)
 * 40) Daemona Prune, Kira Williams, Jericho Anderson and Casey Matthews (Jocelyn Loewen, Cree Summer, Scott Menville, Jason Marsden)
 * 41) Lorelei Brooks, Cynthia Mason, Jordin Hanson and Tamara Hudson (Cherami Leigh, Debi Derryberry, Colleen O'Shaughnessey and Danielle Judovits)
 * 42) Lucy Rochester, Marina Harrington and Anemone Wesley (Tara Jayne, Amy Birnbaum and Lisa Ortiz)
 * 43) Lisa Brandon, Sweet Mint, Stephanie Carlson, Rita Harrington, Riley Edwin, Tiffany Thomas and Toni and Mika Morgan (Lisa Yamanaka, Lisa Ortiz, Maggie Blue O'Hara, Kelly Sheridan and Stephanie Sheh)
 * 44) Megan Griffin, Sharon Flynn, Cara Goodwin and Fiona Destien (Cindy Robinson, Colleen Villard, Ariel Winter and Karen Neil)
 * 45) Rebecca Norman and Jody Priscilla (Laura Bailey and Kate Higgins)
 * 46) Bill and Aldo (Ian James Corlett and Richard Yearwood)
 * 47) Max and Duke (Louis C.K. and Eric Stonestreet)
 * 48) Buster Moon (Matthew McConaughey)

Thomas Stories

 * 1) Dunkin' Duncan
 * 2) Faulty Whistles