The Berenstain Bears and The Mystery Mansion is the 44th episode in the Berenstain Bears 1985 series.
The Bear Detectives are on a mission once again, as they are given the news that all of the antique treasures in the Grizzly Mansion have been stolen and replaced with counterfeits.
- Brian Cummings - Papa Bear
- Christina Lange - Sister Bear
- David Mendenhall - Brother Bear
- Josh Rodine - Cousin Freddy
- Frank Welker - Snuff, Butler