Secret Agent X9
Volumes & series 8
- Secret Agent X9 ★ Atlas · 1948–1950 · 9 issues
- Secret Agent X-9 Feature Productions · 1950 · 32 issues
- Secret Agent X9 Yaffa / Page · 1963–1969 · 13 issues
- Secret Agent X-9 NZ Transfer Co. · 1940 · 5 issues
- Secret Agent X-9 David McKay · 1934 · 2 issues
- Secret Agent X-9 Nostalgia Press · 1976 · 1 issues
- Secret Agent X-9 Kitchen Sink Press · 1990 · 1 issues
- Secret Agent X-9 IDW · 2015 · 1 issues