The Backyardigans (2004)

S3E6 Le Master of Disguise

Title: The Master of Disguise Plot: Austin embarks on a journey aboard the Orient Express, heading from Paris to Istanbul in pursuit of Pablo, the elusive Master of Disguise, who can only be identified by his distinctive laugh. During his quest, he eliminates various suspects, including Juggler Tasha, Cowboy Tyrone, and the train's conductor, Uniqua, based on the unique sounds of their laughter. Will Austin succeed in locating Pablo, the true Master of Disguise?