|Mrs. Dowager Hatt|
She is a bit of a thrill-seeker and hates going slow and resting.
During her youth, she used to be a very good opera singer, though her son does not like hearing it. She owns a Dalmatian, which she renamed "Gremlin" after her adventure with Gordon's "gremlins".
- Keith Wickham (UK/US; thirteenth season onwards)
- Fu Suzuki (Japan; fifth season only)
- Keiko Nemoto (Japan; ninth season onwards)
- Margrit Strassburger (Germany; thirteenth season onwards)
- Ewa Serwa (Poland; thirteenth - sixteenth seasons)
- Anna Apostolakis (Poland; eighteenth season onwards)
- Lena Meieran (Norway; thirteenth - sixteenth season)
- Marianne Westby (Norway; Day of the Diesels onwards)
- Blanche Ravalec (France and French speaking Canada; ninth season onwards)
- Loretta Santini (Mexico; thirteenth season onwards)
- Mercedes Espinosa (Spain)
- In the twelfth season and onwards, her eye colour changed from brown to blue.
- Her name, Dowager, means someone who is a widow with a noble title so this means that her husband is deceased.
- Since the switchover to CGI, Dowager Hatt appears to have lost a significant amount of weight.