There are two "name" actors, most notably the evil villain played by Nicole Kidman, looking very fetching and more than a little kinky. The father of the family that takes in Padington is played by the same British actor - Hugh Bonneville - who plays the Earl on Downton Abby.
The bear steals the show. You discover you can stretch your imagination to cover a native of "darkest Peru" being at heart the quintesential Brit: polite, mannerly, soft-spoken, and addicted to orange marmalade. And entirely without a Spanish or Quechuan accent.