|Born in 1945, Daniel Dreiberg relied more upon technical wizardry and tools than toughness, which set him apart from his fellow costumed adventurers. Still, he has demonstrated more than adequate skills when defending himself. All of his gadgets and costumes are based on an owl theme. He uses an owl-shaped flying vehicle nicknamed the "Owlship" or "Archie" (after Archimedes, Merlin's pet owl in The Sword in the Stone), equipped with a variety of offensive and defensive devices.|
Dreiberg's father was a banker who left him a large inheritance, which he used to design and build his crime-fighting gear. Hollis Mason, the original Nite Owl, was his hero and when he retired, Dan wrote to Mason, asking if he could carry on his name. Upon looking at his gear, Mason was too impressed to refuse him, so Dan started out in the 1960s. From then on, the two men became friends, and met every Saturday.
In 1965, Dreiberg (as Nite Owl) successfully debuted and teamed up with fellow costumed adventurer Rorschach to take on organized crime. Later on he became a member of the Crimebusters. Having already come to believe that his expensive activities were accomplishing little, Dreiberg retired after the passing of the Keene Act on August 3, 1977, although in 1985 (when the story takes place) he seems to regret his decision. Rorschach would later say regarding his retirement, "No staying power." When not fighting crime, Dreiberg mastered in aeronautics and zoology at Harvard University, contributing scholarly articles to ornithological journals after his retirement in 1977.