Anchor is a character who appeared in two books of the original Hardy Boys series.
In The Great Airport Mystery, Anchor is an accomplice in a smuggling ring. The Hardy boys realize he is aptly named due to all the nautical equipment he surrounds himself with in his home.
In What Happened at Midnight, the Hardy Boys are told that "Anchor Pete" got his name due to a penchant for throwing anchors at people to knock them out. Frank Hardy is almost the victim of this assault but fast thinking by his brother and their resilient friends helps him escape. At the end of the book Anchor Pete is captured.