An American Tail: The Mystery of the Night Monster Is A 2000 Film.
- Thomas Dekker as Fievel Mousekewitz
- Lacey Chabert as Tanya Mousekewitz
- Susan Boyd as Nellie Brie
- Robert Hays as Reed Daley
- Pat Musick as Tony Toponi
- Nehemiah Persoff as Papa Mousekwitz
- Jane Singer as Mama Mousekewitz
- Candi Milo as Madame Mousey
- ??? as Twitch
- Jeff Bennett as Slug
- ??? as Bootlick
- Sherman Howard as Haggis
- John Garry as Lone Woof
- "Get the Facts" - Fievel Mousekewitz and Nellie Brie
- "Creature De la Nuit" - Madame Mousey, and The Cat Chorus
- "Who Will" - Fievel Mousekewitz, Nellie Brie, Tony Toponi, and Tiger
- James Horner and
- July 25, 2000
- Takes Place Between Desert Flower and Chief and The Return of Chief.
- It was based on TV Series, Fievel and Tony.
- Preceded by An American Tail: The Treasure of Manhattan Island and followed by Scuttlebutt and Nellie Brie in A Haunted House is Not A Home.
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