Friendship Express train conductors

All Aboard and Steamer are the placeholder names of two male Earth ponies who work as Friendship Express train conductors. They are unnamed, being referred to simply by the respective titles Conductor and Train Conductor each in credits and one in Gameloft's mobile game.

Designs
"All Aboard" has a pale blue coat, dark gray mane and tail, gold eyes, and a cutie mark of a pocket watch. He resembles "Brindle Young".

"Steamer" has a light brown coat, usually brown and light brown mane and tail, gold eyes, and a cutie mark of either a train whistle or a guitar.

Depiction in the series and film
Though the Friendship Express train debuts in the My Little Pony Friendship is Magic season one episode Over a Barrel, the usual Friendship Express conductors are not shown until season two's introduction of the common design for the train. "Steamer" is present in all three versions of the animated sequence for the remastered My Little Pony theme song, appearing in this sequence even earlier than his first appearance in the series proper.

Season two
In Hearth's Warming Eve, "Steamer" appears, and the silhouette of "All Aboard" appears. In The Last Roundup, "All Aboard" appears with an uncredited speaking role voiced by Peter New, and "Steamer" appears. In It's About Time, "Steamer" appears. In MMMystery on the Friendship Express, "Steamer"—with a cutie mark of a train whistle—appears referred to as "the conductor".

Season three
In The Crystal Empire - Part 1 and its recap at the beginning of The Crystal Empire - Part 2, "Steamer" appears, and the silhouette of "All Aboard" appears. In One Bad Apple, "All Aboard" appears, and "Steamer" appears. In Just for Sidekicks, "All Aboard" appears with a speaking role credited as "Conductor" and voiced by Peter New. In Games Ponies Play, "Steamer" appears with a speaking role credited as "Train Conductor" and voiced by Andrew Francis, and "All Aboard" appears with an uncredited speaking role.

My Little Pony Equestria Girls
In the film, "Steamer" appears.

Season four
In Princess Twilight Sparkle - Part 1, "Steamer" appears, the silhouette of "All Aboard" appears, and there is an unseen speaking role credited as "Train Conductor" and voiced by Andrew Francis. In Flight to the Finish, "All Aboard" appears, "Steamer"—with a blue mane and tail and a cutie mark of a guitar—appears, and there is an unseen speaking role credited as "Train Conductor" and voiced by Andrew Francis. In Rainbow Falls, "Steamer" appears, and the silhouette of "All Aboard" appears. In Three's A Crowd, "All Aboard" appears with a speaking role. In Simple Ways, "Steamer" appears. In Trade Ya!, "Steamer" appears, and the silhouette of "All Aboard" appears.

My Little Pony (mobile game)
"All Aboard" is a playable character called "Conductor" in Gameloft's mobile game, which gives him the in-game description "Conductor is a hard-working earth pony who operates the trains around Equestria. His cutie mark is a pocket watch, and he always arrives on time." He was added to the iOS version of the game on December 9, 2013 and to the Android version of the game on December 17, 2013.

IDW comics
On pages 2 and 22, "All Aboard" appears at the Crystal Empire train station.

Quotes
"The train to Canterlot is about to leave!"

- The Last Roundup

"All aboard who's coming aboard!"

- "All Aboard", The Last Roundup

"All aboard!"

- Conductor "All Aboard", Just for Sidekicks

"I can't have all of these animals on my train. Not without tickets and not without chaperones."

- Conductor "All Aboard", Just for Sidekicks

"[laughs] Likely story. No chaperone, no train."

- Conductor "All Aboard", Just for Sidekicks

"All aboard for the Crystal Empire!"

- Just for Sidekicks

"Next stop, the Crystal Empire!"

- Just for Sidekicks

"All aboard!"

- Just for Sidekicks and Games Ponies Play

"Tickets."

- "All Aboard", Games Ponies Play

"Crystal Empire, ladies! Watch your step leaving the train!"

- Train Conductor "Steamer", Games Ponies Play

"All aboard for Ponyville!"

- Train Conductor, Princess Twilight Sparkle - Part 1

"Crystal Empire! All aboard!"

- Train Conductor, Flight to the Finish

"All aboard!"

- Train Conductor, Flight to the Finish

"All aboard!"

- "All Aboard", Three's A Crowd