A key issue noted for First appearance of Thaedus and First appearance of Lucan. Invincible #23 was published by Image Comics on June 1, 2005, as part of a series that began in 2003. Robert Kirkman writes, and art comes from Bill Crabtree, Jacob Baake and Khary Randolph. This 32-page issue features Invincible, Allen, Amber Bennett, Lucan and Telia, among 7 characters cataloged on VerseDB.