Question: What kind of activist is the former child actress who played Bumstead's daughter in the American sitcom "Blondie"?
Sentence (from "Blondie (1968 TV series)"): The series also featured the noted child character actress Pamelyn Ferdin as the Bumstead's daughter, Cookie and character actor Bryan O'Byrne as the hapless mailman, always getting run over by Dagwood hurrying out the door, late for work.
Relevant evidence: Yes