Detective Comics #622 was published by DC Comics on October 1, 1990, as part of a series that began in 1937. John Ostrander and Kelley Puckett write, and art comes from Adrienne Roy, Anthony Tollin and Dick Sprang. This 36-page issue features Batman, Alfred Pennyworth, James Gordon, Batman Who Laughs and Clyde Harris, among 9 characters cataloged on VerseDB.