Dan Dunn Detective Dan: Secret Operative No. 48 (1933), cover art by Norman W. Marsh. Publication information Publisher Humor Publishing First appearance Detective Dan: Secret Operative No. 48 (1933) Created by Norman W. Marsh Dan Dunn is a fictional detective created by Norman W. Marsh. He first appeared in Detective Dan: Secret Operative No. 48, a proto-comic book from 1933 produced by Humor Publishing. He subsequently appeared in newspaper comic strips from 1933 to 1943.

For Sale