Who played doris days son in please dont eat the daisies?

In the film "Please Don't Eat the Daisies," Doris Day's son, Chris Lawrence, was played by actor David McCallum. The movie, released in 1960, is a comedy about a family adjusting to life in the suburbs. McCallum is also known for his roles in various television series, including "The Man from U.N.C.L.E." and "NCIS."