Showcase #103 was published by DC Comics on August 1, 1978, as part of a series that began in 1956. Jack C. Harris writes, and art comes from Al Milgrom, Gene D'Angelo and Joe Kubert. This 36-page issue features Superman, Hal Jordan, Hawkgirl, Katar Hol and Adam Strange, among 17 characters cataloged on VerseDB.