Thomas, Twilight Sparkle & The Best of Elmo is a crossover adventure starring the cast from Thomas the Tank Engine & Friends and the cast from My Little Pony: Friendship is Magic.
Characters (in order of apperance):
- Sir Topham Hatt
- Twilight Sparkle
- Pinkie Pie
- Rainbow Dash
- Julia Roberts
- Prairie Dawn
- Herry Monster
- Whoopi Goldberg
- Big Bird
List of Characters in the songs & certain segments:
- One Fine Face [No one will guest star in this song]
- In Your Imagination [Harold, Henry, Twilight Sparkle, Thomas, Edward and Bertie]
- Happy Tapping wtih Elmo [No one will guest star in this song]
- Elmo and Julia Roberts demonstrate fear [no one will guest star in this segment]
- Five Jive [James & Rarity]
- Three [Henry]
- Whoopi Goldberg & Elmo talk about hair & fur [no one wil lguest star in this segment]
- Heavy & Light [Thomas & Twilight Sparkle]
- Sounds That's in this Air [Fluttershy]
- Elmo's Song [Thomas, Percy and Twilight Sparkle]
Extra My Little Pony: Friendship is Magic songs:
- Becoming Popular [from Sweet & Elite] [after Happy Tapping with Elmo]
- Smile Smile Smile [from A Friend in Deed] [after Five Jive]
- Winter Wrap Up [from Winter Wrap Up] [after Whoopi Goldberg & Elmo]
Extra Thomas Stories:
- Thomas Gets Tricked [before Elmo & Julia Roberts]
- Edward, Trevor and the Really Useful Party [before Three]
- A Better Vew for Gordon [before Heavy & Light]
- Special customized Elmo drawings of the extra Thomas stories & My Little Pony: Friendship is Magic songs will be used in this crossover
- Thomas & Twilight Sparkle's Adventures in Elmopalooza
- Thomas, Twilight Sparkle & Elmo Says BOO!
- Percy, Pinkie Pie and Cookie Monster's Best Bites
- Thomas & Twilight Sparkle's Monster Hits!
- Thomas & Twilight Sparkle's Sleepytime Songs & Stories
- Thomas, Twilight Sparkle & Big Bird Sings!
- Thomas & Twilight Sparkle's Adventures of Don't Eat the Pictures (Sesame Street at the Metropolitan Museum of Art)
- Thomas and Twilight Sparkle Sing, Hoot & Howl
- James and Rarity Elmocize!
- Thomas & Twilight Sparkle's Adventures in Learning About Numbers
- Percy and Pinkie Pie's Adventures in Learning About Letters
- Thomas and Twilight Sparkle's Quiet Time
- Berite & Spike's Adventures in Rock & Roll
- Percy, James Pinkie Pie and Rarity Imagine That!
- Thomas & Twilight Sparkle Do The Alphabet
- Percy & Pinkie Pie's Sing Yourself Silly!