lauren ann chapin is an american former child actress, most remembered for her role as the youngest child kathy anderson in the television show father knows best, which. lauren chapin is best known for playing kathy anderson in the sitcom father knows best. She also appeared in other shows, movies and documentaries, and is now a producer. lauren ann chapin (born may 23, 1945) is an american former child actress who played the role of the youngest child kathy anderson (nicknamed kitten) in the television show. father knows best is an american sitcom starring robert young, jane wyatt, elinor donahue, billy gray and lauren chapin. The series, which began on radio in 1949,. lauren ann chapin (born may 23, 1945) is an american former child actress who played the role of the youngest child kathy anderson (nicknamed kitten) in the television show.
