Gustave le Grand

Gustav le Grand is a griffon and a baker that appears in the episode MMMystery on the Friendship Express.

Depiction in the series
Gustav first appears aboard the train, gloating on how his éclairs would win first place, instead of the Cakes' cake.

He is later under supsicion when Pinkie Pie theorizes on that he is the culprit, until Twilight Sparkle proves that Gustav didn't do it.

Quotes
"Zis is not so, for I, Gustav le Grand, do challenge your crude cake to a duel of delectable delicacies, against my exceptionally exquisite eclairs! They will undoubtedly strike down all the competition, winning first prize and crowing me the champion."

- MMMystery on the Friendship Express