Barney's Musical Castle (also known as Barney's Marvellous Castle in the UK and the Middle East) is Barney's third stage show tour (following Barney Live! in New York City and Barney in Concert). It was toured in South America from September 1996 to February 1998. The filmed performance of the live show was released on home video in May 26, 1998. The home video version of the live show was taped at The Majestic Theater in Dallas, Texas.
A sign leads Barney and his friends - Ashley, Nick, Kevin and Whitney to an echanted forest. Along the way, Barney receives a letter from his friend - "Old King Cole" that says that he is inviting Barney and the kids to his castle for a royal party. Following the sign to the castle, Barney suggested that Ashley, Kevin, Nick and Whitney need to wear royal clothing for the castle party.
- Barney (Voice - Bob West, Costume - Josh Martin)
- Baby Bop (Voice - Julie Johnson, Costume - Jennifer Romano)
- BJ (Voice - Patty Writz, Costume - Kyle Nelson)
- Ashley (Talia Davis) (only appearance)
- Kevin (Wesley Farnsworth) (only appearance)
- Nick (Frankie Muniz) (only appearance)
- Whitney (Jasmine Woods) (only appearance)
- Old King Cole (DeWayne Hambrick)
- Curtis (Monte Black) (Home Video Version Only)
- Chip (Lucien Douglas) (Home Video Version Only)
- Robert (Angel Velasco) (Home Video Version Only)
- Dad (Derrick Graves) (Home Video Version Only)