Onomatopoeia (comics)
Onomatopoeia is a DC Comics supervillain, an enemy of Green Arrow and Batman. He first appeared in Green Arrow #12 (March 2002). He was created by writer Kevin Smith and artist Phil Hester. IGN's Daniel Crown called him "one of the coolest new villains of the decade".
Read more about Onomatopoeia (comics): Publication History, Powers and Abilities