Marianne Westby (born on 1 January 1974) is a Norwegian actress who provided voices for the Norwegian narration of the Thomas & Friends.
She also voices in the Norwegian version of "The Suite Life of Zack and Cody", "The Suite Life On Deck", "Shake it Up", "Kim Possible", and has had roles in the Norwegian television show "Hotel Cæsar".
- Emily (Day of the Diesels - Tale of the Brave, excluding the sixteenth and seventeenth seasons)
- Belle (Day of the Diesels only)
- Mavis (Day of the Diesels and Blue Mountain Mystery)
- Annie and Clarabel (Blue Mountain Mystery - Tale of the Brave, excluding the seventeenth season)
- Troublesome Trucks (King of the Railway)
- Lady Hatt (Day of the Diesels only)
- Dowager Hatt (Day of the Diesels only)