Eric O'Grady is the name of two characters appearing in American comic books published by Marvel Comics. The first is an immoral Irish human superhero who is the third character to use the Ant-Man name, created by writer Robert Kirkman and artist Phil Hester, and first appears in The Irredeemable Ant-Man #1, while the second is a Life Model Decoy made of the original O'Grady's corpse created after his death, revived with a more outwardly villainous mindset and initially continuing as Ant-Man before becoming the supervillain Black Ant, created by writer Rick Remender and artists Gabriel Hardman and Matteo Scalera, and first appearing in Secret Avengers #24.