Thomas, The Return of Devious Diesel, and The King of Thieves - UbiSoftFan94.

Cast

 * Thomas as Aladdin (Both the main heroes)
 * Percy as Abu (Both good friends to Thomas and Aladdin)
 * Emily as Princess Jasmine (Both beautiful and crush on Thomas and Aladdin)
 * Edward as Sultan (Both old and wise)
 * Casey Jr. (from Disney's Dumbo/Casey Jr. and Friends) as Genie (Both blue)
 * Devious Diesel as Jafar (Both the main villians)
 * Duncan as Iago (I think Duncan would suit Iago, because they're both half bad and half good)
 * James as Rajah
 * The Chinese Dragon as The Cave of Wonders (Both Big Strong and Scary)
 * Sir Handel as Cassim
 * Spencer as Razoul (Spencer is a villain in HOTR)
 * Diesel 10 as Sa'luk
 * Mavis as Eden
 * Smudger as Abis Mal
 * George as Prince Achemed
 * Bulgy as Gazeem
 * Molly as Women at Window
 * Zorran (from TUGS) as Snake Jafar
 * Cerberus (from The Little Engine That Could "2011 film") as Genie Jafar
 * Arry, Bert, Splatter, Dodge, Den, Dart, Sidney, Norman, Paxton, Dennis, and Troublesome Trucks as The Thieves
 * D261, Max, Monty, Bertram, Scruffey, Hector, D7101, D199, Bear, Old Stuck Up, and Season 1 Trucks as The Guards
 * The Foolish Freight Cars as Razoul's Minions