Invincible #50 was published by Image Comics on August 1, 2008, as part of a series that began in 2003. Robert Kirkman writes, and art comes from Bill Crabtree, Cliff Rathburn and Cory Walker. This 52-page issue features Invincible, Atom Eve, Robot, Omni-Man and Cecil Stedman, among 23 characters cataloged on VerseDB.