Thomas/Fanboy and Chum Chum

Version 1

 * Thomas as Fanboy (Thomas and Fanboy are both Main Heroes) (Fanboy's Voice Suits Thomas The Blue Tank Engine)
 * Percy as Chum Chum (Percy and Chum Chum are both Small and They are both Best Friends To Thomas and Fanboy) (Chum Chum's Voice Suits Percy The Small Green Tank Engine)
 * Emily as Yo (Emily and Yo are both Happy, Gentle, Friendly, Cheerful and Beautiful) (Yo's Voice Suits Emily The Beautiful Emerald Sterling Tender Engine)
 * James as Kyle The Conjurer (James and Kyle The Conjurer are both Vain) (Kyle The Conjurer's Voice Suits James The Red Tender Engine)
 * Diesel as Sigmund The Sorcerer
 * Henry as Ozvald "Oz" Harmonian
 * Bert as Boog
 * Arry as Lenny
 * Gordon as Hank Mufflin
 * Lady Hatt as Mrs. Bingle
 * Isobella as Madame LaVache/Ms. Olive
 * Harvey as Yum Yum
 * Bertie as Dollar-Nator
 * Jeremy as Man-Arctica
 * Edward as Agent Johnson
 * Toby as Fedora Man
 * George as Secret Shopper
 * Whiff as Fankylechum
 * Harold as Dirty Bird
 * Dennis as Chris Chuggy
 * Fergus as Scrivener Elf
 * Hector as Dr. Acula
 * Rosie as Nancy Pancy
 * Mavis as Lupe
 * Flora as Girl
 * Molly as Cher Leader
 * Belle as Lillie Lotus
 * Bulstrode as Mechatech
 * Daisy as Francine
 * Caroline as Marsha
 * Duke as Duke (Both share the same name)
 * Stanley as Cheech
 * Rusty as Necronomicon
 * Madge as Oz's Mum
 * Bulgy as The Global Warmer
 * Spencer as Professor Flan
 * Elizabeth as Lunch Lady Cram
 * Salty as Thorvald the Red
 * Murdoch as The Ice Guy
 * Monty as Chimp Chomp
 * Max as Brizwald
 * Jack as Berry the Ice Monster
 * Hank as Stan Arctica
 * Boco as The Defender
 * Derek as Cuppy
 * Duck as Michael Johnson
 * The Spiteful Breakvan as Wally the Great
 * Sir Topham Hatt as Cecil the Magic Club President
 * D261 as Roland
 * Scruffey as Jimbo the Juggler
 * Diesel 10 as Janitor Russ Poopatine
 * Lady as Muk Muk
 * Duncan as Scampers
 * Oliver as Agent 8
 * Stepney as Moppy
 * Charlie as Rechy Lintpockets
 * Splatter as Sprinkles
 * Dodge as Mitzi

Version 2

 * Thomas as Fanboy (Thomas and Fanboy are both The Main Heroes) (Fanboy's Voice Suits Thomas The Blue Tank Engine)
 * Percy as Chum Chum (Percy and Chum Chum are both Sidekicks To Thomas and Fanboy) (Chum Chum's Voice Suits Percy The Green Tank Engine)
 * Emily as Yo (Emily and Yo are both Happy, Gentle, Friendly, Cheerful and Beautiful) (Yo's Voice Suits Emily The Beautiful Emerald Sterling Tender Engine)
 * James as Kyle The Conjurer (James and Kyle The Conjurer are both Vain) (Kyle The Conjurer's Voice Suits James The Red Tender Engine)
 * Diesel as Sigmund The Sorcerer (Diesel and Sigmund The Sorcerer are both Wearing Black) (Sigmund The Sorcerer's Voice Suits Devious Diesel)
 * Mavis as Lupe
 * Rosie as Nancy Pancy
 * Molly as Cher Leader
 * Lady as Muk Muk
 * Daisy as Francine
 * Duck as Michael Johnson
 * Oliver as Duke
 * Whiff as FanKyleChum
 * Edward as Oz
 * Gordon as Hank Mufflin
 * Boco as Man-Arctica
 * Bertie as Dollar-Nator
 * Arry as Lenny
 * Bert as Boog
 * Harvey as Yum Yum
 * Jack as Berry The Ice Monster
 * Isobella as Madame LaVache/Ms. Olive
 * Elizabeth as Lunch Lady Cram
 * Caroline as Marsha
 * Bulgy as Global Warmer
 * George as Brizwald
 * Spencer as Professor Flan
 * Diesel 10 as Janitor Pooptaine

Version 3

 * Thomas as Fanboy
 * Percy as Chum Chum
 * Emily as Yo
 * James as Kyle The Conjurer
 * Diesel as Sigmund The Sorcerer
 * Gordon as Mr. Mufflin
 * Edward as Oz
 * Rosie as Nancy Pancy
 * Duck as Michael Johnson
 * Mavis as Lupe
 * Molly as Cher Leader
 * Oliver as Duke
 * Whiff as FanKyleChum
 * Lady as Muk Muk
 * Dennis as Chris Chuggy
 * Daisy as Francine
 * Boco as Man-Arctica
 * Hector as Dr. Acula
 * Fergus as Scrivener Elf
 * Duke as Necronomicon
 * Duncan as Scampers
 * Arry and Bert as Boog and Lenny
 * Isobella as Madame LaVache/Ms. Olive
 * Elizabeth as Lunch Lady Cram
 * Caroline as Marsha
 * Bulgy as Global Warmer
 * George as Brizwald
 * Spencer as Professor Flan
 * Diesel 10 as Janitor Poopatine

Version 4

 * Thomas as Fanboy
 * Percy as Chum Chum
 * Emily as Yo
 * James as Kyle The Conjurer
 * Diesel as Sigmund The Sorcerer
 * Henry as Oz
 * Bert as Boog
 * Arry as Lenny
 * Gordon as Mr. Mufflin
 * Harvey as Yum Yum
 * Bertie as Dollar-Nator
 * Boco as Man Artica
 * Edward as Agent Johnson
 * George as Secret Shopper
 * Toby as Fedora Man
 * Whiff as FanKyleChum
 * Harold as Dirty Bird
 * Fergus as Scrivener Elf
 * Hector as Dr. Acula
 * Bulstrode as Mechatech
 * Mavis as Lupe
 * Rosie as Nancy Pancy
 * Flora as Girl
 * Molly as Cher Leader
 * Belle as Lillie Lotus
 * Daisy as Francine
 * Oliver as Duke
 * Duck as Michael Johnson
 * Dennis as Chris Chuggy
 * Caroline as Marsha
 * Stanley as Cheech
 * Lady as Muk Muk
 * Bulgy as Sprinkles
 * Duke as Necronomicon
 * Diesel 10 as The Global Warmer
 * Madge as Oz's Mom
 * Spencer as Professor Flan
 * Isobella as Madame LaVache/Ms. Olive
 * Elizabeth as Lunch Lady Cram
 * Salty as Thorval the Red
 * Murdoch as The Ice Guy
 * Monty as Chimp Chomp
 * Max as Brizwald
 * Jack as Berry the Ice Monster
 * Hank as Stan Arctria
 * Boco as The Defender
 * Derek as Cuppy
 * Duncan as Scampers
 * Rusty as Agent 8
 * Stepney as Moppy
 * Charlie as Rechy Lintpockets
 * Splatter as Precious
 * Dodge as Mitzi

Version 5

 * Thomas as Fanboy
 * Percy as Chum Chum
 * Emily as Yo
 * James as Kyle The Conjurer
 * Paxton as Sigmund The Sorcerer
 * Norman as Harold The Unbelievable
 * Henry as Oz
 * Bert as Boog
 * Arry as Lenny
 * Gordon as Mr. Mufflin
 * Lady Hatt as Mrs. Bingle
 * Harvey as Yum Yum
 * Bertie as Dollar Nator
 * Cranky as Stinky Pink Pool
 * Jeremy as Man Artica
 * Edward as Agent Johnson
 * Toby as Fedora Man
 * George as Secret Shopper
 * Whiff as FanKyleChum
 * Harold as Dirty Bird
 * Fergus as Scriveneer Elf
 * Hector as Dr. Acula
 * Bulstrode as Mechatech
 * Mavis as Lupe
 * Rosie as Nancy Pancy
 * Flora as Girl
 * Molly as Cher Leader
 * Belle as Lillie Lotus
 * Daisy as Francine
 * Duke as Duke
 * Duck as Michael Johnson
 * Dennis as Chris Chuggy
 * Caroline as Marsha
 * Stanley as Cheech
 * Lady as Muk Muk
 * Bulgy as Sprinkles
 * Rusty as Necronomican
 * D261 as The Global Warmer
 * Madge as Oz's Mom
 * Spencer as Professor Flan
 * Isobella as Madame LaVache/Ms. Olive
 * Elizabeth as Lunch Lady Cram
 * Salty as Thorvald the Red
 * Murdoch as The Ice Guy
 * Monty as Chimp Chomp
 * Max as Brizwald
 * Jack as Berry the Ice Monster
 * Hank as Stan Arctria
 * Boco as The Defender
 * Derek as Cuppy
 * Duncan as Scampers
 * Oliver as Agent 8
 * Stepney as Moppy
 * Charlie as Rechy Lintpockets
 * Splatter as Precious
 * Dodge as Mitzi
 * The Spiteful Breakvan as Wally the Great
 * Sir Topham Hatt as Cecil the Magic Club President
 * Diesel 10 as Roland
 * Scruffey as Jimbo the Juggler
 * Diesel as Janitor Poopatine

Version 6

 * Thomas as Fanboy
 * Percy as Chum Chum
 * Emily as Yo
 * James as Kyle The Conjurer
 * Paxton as Sigmund The Sorcerer
 * Norman as Harold The Unbelievable
 * Henry as Oz
 * Bert as Boog
 * Arry as Lenny
 * Gordon as Mr. Mufflin
 * Isobella as Madame LaVache/Ms. Olive
 * Lady Hatt as Mrs. Bingle
 * Harvey as Yum Yum
 * Bertie as Dollar Nator
 * Cranky as Sinky Pink Pool
 * Jeremy as Man Artica
 * Edward as Agent Johnson
 * Toby as Fedora Man
 * George as Secret Shopper
 * Whiff as FanKyleChum
 * Harold as Dirty Bird
 * Fergus as Scriveneer Elf
 * Hector as Dr. Acula
 * Bulstrode as Mechatech
 * Mavis as Lupe
 * Rosie as Nancy Pancy
 * Flora as Girl
 * Molly as Cher Leader
 * Belle as Lillie Lotus
 * Daisy as Francine
 * Oliver as Duke
 * Duck as Michael Johnson
 * Dennis as Chris Chuggy
 * Caroline as Marsha
 * Stanley as Cheech
 * Lady as Muk Muk
 * Bulgy as Sprinkles
 * Duke as Necronomicon
 * D261 as The Global Warmer
 * Madge as Oz's Mom
 * Spencer as Professor Flan
 * Elizabeth as Lunch Lady Cram
 * Salty as Thorval the Red
 * Murdoch as The Ice Guy
 * Monty as Chimp Chomp
 * Max as Brizwald
 * Jack as Berry the Ice Monster
 * Hank as Stan Arctria
 * Boco as The Defender
 * Derek as Cuppy
 * Duncan as Scampers
 * Rusty as Agent 8
 * Stepney as Moppy
 * Charlie as Rechy Lintpockets
 * Splatter as Precious
 * Dodge as Mitzi
 * The Spiteful Breakvan as Wally the Great
 * Sir Topham Hatt as Cecil the Magic Club President
 * Diesel 10 as Roland
 * Scruffey as Jimbo the Juggler
 * Diesel as Janitor Poopatine

Version 7

 * Thomas as Fanboy
 * Percy as Chum Chum
 * Emily as Yo
 * James as Kyle The Conjurer
 * Spencer as Sigmund The Sorcerer
 * Mavis as Lupe
 * Molly as Cher Leader
 * Rosie as Nancy Pancy
 * Duck as Michael Johnson
 * Oliver as Duke
 * Lady as Muk Muk
 * Daisy as Francine
 * Caroline as Marsha
 * Edward as Oz
 * Gordon as Mr. Mufflin
 * Bertie as Dollar-Nator
 * Derek as Boog
 * Boco as Lenny
 * Madge as Oz's Mom
 * Isobella as Madame LaVache/Ms. Olive
 * Elizabeth as Lunch Lady Cram
 * Bulgy as Professor Flan
 * Diesel as Janitor Poopatine

Version 8

 * Thomas as Fanboy
 * Percy as Chum Chum
 * James as Kyle The Conjurer
 * Emily as Yo
 * Henry as Ozvald "Oz" Harmonian
 * Gordon as Hank Mufflin
 * Edward as Agent Johnson
 * Toby as Fedora Man
 * Arry and Bert as Lenny and Boog
 * Madge as Oz's Mom
 * Jack as Berry The Ice Monster
 * Isobella as Madame LaVache/Ms. Olive
 * Hiro as Man Arctica
 * Bertie as Dollar-Nator
 * Harvey as Yum Yum
 * Mavis as Lupe
 * Rosie as Nancy Pancy
 * Molly as Cher Leader
 * Lady as Muk Muk
 * Duck as Michael Johnson
 * Oliver as Duke
 * Whiff as FanKyleChum
 * Dennis as Chris Chuggy
 * Stanley as Cheech
 * Charlie as Rechy Lintpockets
 * Salty as Thovrald The Red
 * Rusty as Agent 8
 * Hector as Dr. Acula
 * Fergus as Scrivener Elf
 * Duke as Necronomicon
 * Spencer as Sigmund The Sorcerer
 * Duncan as Scampers
 * Bulstrode as Mechatech
 * Bulgy as Professor Flan
 * Daisy as Francine
 * Caroline as Marsha
 * Elizabeth as Lunch Lady Cram
 * Diesel 10 as The Global Warmer
 * D261 as Brizwald
 * Diesel as Janitor Poopatine