Throughout the Countdown, each of the Monitors begins to develop disparate personalities and physical characteristics which reflect (to some extent) the nature of their universe and each Monitor takes a name for themselves. In Final Crisis, one Monitor reflects that this is because interaction with the worlds of the Multiverse has allowed time itself—beginnings and endings—to enter their haven. Notably, Rox Ogama, disciple of the Dark Monitor, Mandrakk, is charged to look after the universe of Batman & Dracula: Red Rain, in which Batman also becomes a vampire.
This leads to the development of distinct personalities and physical features among the Monitors, mirroring (to some degree) the characteristics of their respective universes. Each Monitor adopts a name for themselves. In Final Crisis, one Monitor notes that interaction with the Multiverse has allowed time itself—beginnings and endings—to enter their sanctuary. Notably, Rox Ogama, disciple of the Dark Monitor Mandrakk, is assigned to oversee the universe of Batman & Dracula: Red Rain, in which Batman also becomes a vampire.