|First Published:||December, 1974-January, 1975|
|Previous Issue:||Detective Comics #443|
|Next Issue:||Detective Comics #445|
To be added
- Talia al Ghul
- Scrag Donovan (Only appearance)
- Roger Barton (Only appearance)
- Elizabeth Baylor (Only appearance)
- Other new stories in this issue include "The Magical Mystery Mirror" (Elongated Man). Starting with this issue, there is no regular backup feature in Detective Comics; it changes every issue.
- Reprinted stories in this issue include "Dick Grayson Detective!" (Robin), "The Case of the Martian Witness!" (Star Hawkins), "The International Sky Police!" (Manhunters Around the World), an untitled Kid Eternity story, "The Good-Luck Prophet" (Roy Raymond, TV Detective), "The Case of the Haunted Horse!" (Sierra Smith) and "Circus Beat" (Gang Busters).