- Alan Young, Barrie Ingham, Basil Rathbone, Candy Candido, Diana Chesney, Ellen Fitzhugh, Eve Brenner, Susanne Pollatschek, Tony Anselmo, Val Bettin, Vincent Price, Walker Edmiston, Wayne Allwine
- Burny Mattinson, David Michener, John Musker, Ron Clements
In Victorian London, England, a little mouse girl’s toymaker father is abducted by a peg-legged bat. She enlists the aid of Basil of Baker Street, the rodent world’s answer to Sherlock Holmes. The case expands as Basil uncovers the crime’s link to a plot against the Crown itself.