Cosmo, the Phantom of Disguise
from Detective Comics
- Also known as
Appearances
- Detective Comics #1 — 1937-03-00
- Detective Comics #2 — 1937-04-00
- Detective Comics #3 — 1937-05-00
- Detective Comics #4 — 1937-06-00
- Detective Comics #5 — 1937-07-00
- Detective Comics #6 — 1937-08-00
- Detective Comics #7 — 1937-09-00
- Detective Comics #8 — 1937-10-00
- Detective Comics #9 — 1937-11-00
- Detective Comics #10 — 1937-12-00
- Detective Comics #11 — 1938-01-00
- Detective Comics #12 — 1938-02-00
- Detective Comics #13 — 1938-03-00
- Detective Comics #14 — 1938-04-00
- Detective Comics #15 — 1938-05-00
- Detective Comics #16 — 1938-06-00
- Detective Comics #17 — 1938-07-00
- Detective Comics #18 — 1938-08-00
- Detective Comics #19 — 1938-09-00
- Detective Comics #20 — 1938-10-00
- Detective Comics #22 — 1938-12-00
- Detective Comics #23 — 1939-01-00
- Detective Comics #24 — 1939-02-00
- Detective Comics #25 — 1939-03-00
- Detective Comics #26 — 1939-04-00
- Detective Comics #27 — 1939-05-00
- Detective Comics #28 — 1939-06-00
- Detective Comics #29 — 1939-07-00
- Detective Comics #30 — 1939-08-00
- Detective Comics #31 — 1939-09-00
- Detective Comics #32 — 1939-10-00
- Detective Comics #33 — 1939-11-00
- Detective Comics #34 — 1939-12-00
- Detective Comics #35 — 1940-01-00
- Detective Comics #36 — 1940-02-00
- Detective Comics #37 — 1940-03-00