Sam Barkley was a famous sportsman who secretly harbored dreams of world domination. As the Green Mask he was willing to resort to murder and kidnapping to destroy America. He carried a gun, and led a gang which included his girlfriend, Lili Damora. He was stopped by X, the Phantom Fed, but he decided to kill himself with a capsule of cyanide (prussic acid) rather than be captured.
| Alias Green Mask (Ace) |
| Real Names/Alt Names Sam Barkley |
| Characteristics Villain, Criminal Mastermind, Pulp Characters, Modernism Era |
| Creators/Key Contributors Paul Chadwick |
| First Appearance Secret Agent X #4 (May 1934) |
| First Publisher Ace Magazines [CB+] [DCM] [GCD] |
| Appearance List Secret Agent “X” #4, Sure-Fire Comics vol. 1 #1 |
| Sample Read Secret Agent “X” (May 1934) [Web] |
| Description Sam Barkley was a famous sportsman who secretly harbored dreams of world domination. As the Green Mask he was willing to resort to murder and kidnapping to destroy America. He carried a gun, and led a gang which included his girlfriend, Lili Damora. He was stopped by X, the Phantom Fed, but he decided to kill himself with a capsule of cyanide (prussic acid) rather than be captured. |
| Source Green Mask (Ace) – Public Domain Super Heroes Wiki |

