A key issue noted for Origin of Valkyrie. The Defenders #5 was published by Marvel Comics on April 1, 1973, as part of a series that began in 1972. Steve Englehart writes, and art comes from Frank McLaughlin, Glynis Oliver and John Verpoorten. This 36-page issue features Hulk, Doctor Strange, Namor, Black Knight and Valkyrie, among 11 characters cataloged on VerseDB.