K-51, also known as Ken Flynn, has appeared in 20 comics from Fox Comics (US) since 1939. The most recent cataloged appearance dates to 2017. Most cataloged appearances come from Wonderworld Comics.
Gwandanaland Comics
2 issues
Fox Comics (US)
31 issues
Fox Comics (US), Holyoke
59 issues
6 issues
Wonder Comics (2017)
Wonderworld Comics (1939)
The Blue Beetle (1939)
Aug 20, 1940
Samson (1940)
Dan Barrister
Fung
Patty O'Day
Stevens (first name unrevealed)
Chuck Lawton
Robinson
Tommy Taylor
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