Captain America #617

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  • 1st appearance of Niko Constantin, the only male trainee of the Wolf Spider Ops program, the male equivalent to the Black Widow program
  • 1st appearance of Niko Constantin, the only male trainee of the Wolf Spider Ops program, the male equivalent to the Black Widow program

Issue Details

Publisher Marvel
Artist Marko Djurdjevic
Writer Ed Brubaker
Published June 2011