Delta is the originator and first leader of the Harbingers, a position he eventually relinquished to his student. His years of inactivity led many Harbingers who knew him—including Antonio—to assume that he’d met his demise.
As seen in Victoria’s dream, Delta was once a weathered-looking human with light skin, green hair, and grey eyes. He wears a grey-purple robe and an eyepatch, the latter of which covers his left eye. His hair has long bangs, and he also wears a medium-length beard.
In his modern appearance, Delta’s hair is white, and his beard is much longer. He also wears a brown cap.
Delta is resourceful and skilled, if prone to being somewhat gruff and abrasive in his interactions with others. He prefers strategic planning over spontaneity, but can make split-second decisions if in high-stakes situations. His style of communication is straightforward and efficient, often to the point of seeming curt.
Delta’s voice is somewhat textured and monotone. He tends to utilize short sentences and minor contractions involving present progressive ("-ing") verbs in Low Vostinian. To most listeners, Delta’s speaking voice would not be particularly memorable—simply a Low Vostinian speaker from Wrytoll, if perhaps one with vocal damage from smoking.
- Delta’s name is most likely his codename within the Harbingers, similar to Antonio’s use of "Azure One" when in communication channels.