Irredeemable #18 was published by Boom! Studios on October 1, 2010, as part of a series that began in 2009. Mark Waid writes, and art comes from Andrew Dalhouse, Dan Panosian and Jeffrey Spokes. This 36-page issue features Plutonian, Qubit, Kaidan, Charybdis and Gilgamos, among 13 characters cataloged on VerseDB.