Födelsedatum	3.5.1939
Dödsdatum	11.6.2020
Yrke	kirjailija sarjakuvataiteilija
Verksamhetsområde	sarjakuvat
Andra namnformer	O'Neil, Denny (1939-2020)
Identifikationskoder	http://urn.fi/URN:NBN:fi:au:finaf:000087487 (finaf) 0000000084144554 (isni)
Källor	Wikipedia (Dennis O'Neil: Dennis Joseph O'Neil[4][5] (May 3, 1939 – June 11, 2020)[6] was an American comic book writer and editor, principally for Marvel Comics and DC Comics from the 1960s through the 1990s, and Group Editor for the Batman family of titles until his retirement.) katsottu 23.3.2023