The Partridge Family
as Shirley Partridge
as Keith Partridge
as Laurie Partridge
as Danny Partridge
as Chris Partridge
as Tracy Partridge
as Reuben Kincaid
as Grandpa Renfrew
as Grandma Renfrew
as Richard Lawrence / Dr. Whelander
as Cal / Willie Larkin
as Hank / Snake
as Dr. Jim Lucas / Howard Lipton
as Morris Tinkler / Nicholas Minsky Pushkin
as Max Pepper
as Coach / Monty
as Albert / Scotty
as Carol
as Snake
as A.E. Simon
as Julie Lawrence
as Walter Yost
as Jerry
as Johanna Houser
as Pretty Girl
as Tina
as Bobby Conway