* Shirley Partridge: The mother, a talented singer and the family matriarch.
* Keith Partridge: The oldest son, a talented musician and songwriter.
* Laurie Partridge: The eldest daughter, a talented singer and dancer.
* Danny Partridge: The middle son, a talented musician and the comedic relief.
* Tracy Partridge: The youngest daughter, a talented singer and dancer.
* Reuben Kincaid: The family's manager and a talented musician.
It's worth noting that the character of Reuben Kincaid was not present in the first season of the show.