Who are the people in cheaper by the dozen?

In "Cheaper by the Dozen," the main characters are the Baker family, which includes parents Tom and Kate Baker, played by Steve Martin and Bonnie Hunt. They have twelve children, each with unique personalities, contributing to the family's comedic and chaotic dynamic. The film explores their challenges and adventures as they navigate family life, balancing individual needs with collective experiences. The ensemble cast includes notable actors like Hilary Duff, Piper Perabo, and Ashton Kutcher, who bring the vibrant family to life.