For children growing up in Atlanta in the 1950s and 1960s Officer Don was a celebrity. His real name was Don Kennedy, and he was a major figure in local Atlanta media, not only in children's programming, but, as a founder of WKLS (known as 96 Rock), in radio as well.
After serving in the Korean War, he took a job as an 11 PM newscaster for WSB-TV, and was soon assigned to the job for which he is most well known and well loved by Atlantans, that of a children's show host. The Popeye Club ran from 1956 to 1970.
In 1960 Kennedy cofounded WKLS, which was later known as "96 Rock".
He is now 83 years old [NOTE: I've seen bios of him listing his birthdate as 1920, and 1930. 1930 seems likelier to me, but I'm going to check on it further] , and worked until recently, including doing voice work for the cartoon series Aqua Teen Hunger Force, and hosting Big Band Jump, a syndicated radio show.
Here are a few links about Don Kennedy I've found via web search.