Daniel M. "Dan" Dreiberg is the second former masked vigilante known as Nite Owl II. Dreiberg succeeded the original Nite Owl, Hollis Mason, and became part of the second generation of costumed adventurers. He joined up with other heroes to form the Crimebusters, but the team never came to fruition. Dreiberg continued to fight crime alongside his former partner Rorschach until he was forced into retirement due to the Keene Act which made costumed vigilantism illegal.